A.

39

B.

352g

C.

264g

D.

156g

A.

-5

B.

-1

C.

1

D.

7

A.

s orbitals

B.

p orbitals

C.

d orbitals

D.

f orbitals

A.

Electrons are consumed

B.

Oxidation is involved

C.

Ions are reduced

D.

Electrode dissolves

A.

CH2Br2

B.

CH3CH2Br

C.

C2H2Br2

D.

CHBr3

A.

Hydrogen and trioxocarbonate(IV) acid

B.

Hydrogen, oxygen and carbon(IV) oxide

C.

Hydrogen and carbon (II) oxide

D.

Hydrogen and carbon (IV) oxide

A.

CH3CH2CH3

B.

CH3CH = CH2

C.

CH3CH2C = CH

D.

CH3C = CH

A.

SO2 and NO

B.

CO2 and H2O

C.

CO and CO2

D.

NO and H2O

A.

Argon

B.

Helium

C.

Neon

D.

Krypton

A.

Electroplating

B.

Arc-welding

C.

Reducing a mixture of their metallic oxides

D.

Cooling a molten mixture of the metals

A.

glycerol

B.

phenol

C.

glycol

D.

ethanol

A.

High temperature

B.

Any temperature

C.

Low temperature

D.

Minimum temperature

A.

Platinum

B.

Copper

C.

Zinc

D.

Carbon

A.

CHCI3

B.

CH2C2

C.

CH3CI

D.

CCI4

A.

KCLO3

B.

KCLO4

C.

KCLO

D.

KCLO2

A.

Hydrochloric acid

B.

Calcium hydroxide

C.

Kerosene

D.

Water

A.

Have duplet or octet electron configurations

B.

Belong to group zero of the periodic table

C.

Are volatile in nature

D.

Have no electron in their outermost shells

A.

Colourless solution

B.

Purple precipitate

C.

Purple solution

D.

Colourless precipitate

A.

Polymerization

B.

Substitution

C.

Fermentation

D.

Hydrolysis

A.

2Y

B.

2Z

C.

Z

D.

Y

A.

Dissolved solute and the solvent

B.

Solvent and the undissolved solute

C.

Dissolved solute and the undissolved solute

D.

Dissolved solute and the solution

A.

Distillation

B.

Condensation

C.

Extraction

D.

EvapopraTION

A.

One positive end and one neutral end

B.

Two positive ends

C.

One positive end and one negative end

D.

Two negative ends

A.

Positive entropy change

B.

Negative entropy change

C.

No entropy change

D.

A minimum entropy change

A.

weakly acdic

B.

neutral

C.

acidic

D.

alkaline

A.

Addition

B.

Hydrolysis

C.

Polymerization

D.

Substitution

A.

Magnesium trioxosilicate (IV) and calcium Tetraoxosulphate(VI)

B.

Magnesium trioxosilicate(IV) and rust

C.

Clay and magnesium trioxosilicate (IV)

D.

clay and rust

A.

Ethanol

B.

Methanol

C.

Butanal

D.

Propanal

A.

Adding a catalyst

B.

Removing ammonia

C.

Increasing the pressure

D.

Increasing the temperature

A.

Electrovalency

B.

Electron affinity

C.

Electropositivity

D.

Electronegativity

A.

Carbon(IV) oxide and water

B.

Oxygen and water

C.

Hydrogen and water

D.

Carbon(II)oxide an d water

A.

Burning kerosene

B.

Freezing ice-cream

C.

Exposing white phosphorus to air

D.

Dissolving calcium in water

A.

Metals

B.

Semi-metals

C.

Colloids

D.

Non-metals

A.

00C

B.

-1000C

C.

-2730C

D.

-3730C

A.

Raw materials for the cracking process

B.

Fuel for driving tractors

C.

Fuel for jet engines

D.

Coatings for pipes

A.

Fe

B.

Cu

C.

Ca

D.

Sn

A.

Tools

B.

Coins and medals

C.

Moving parts of clocks

D.

Magnets

A.

Carbon(IV) oxide

B.

Nitrogen (II)oxide

C.

Hydrogen sulphide

D.

Sulphur(IV) oxide

A.

CuS

B.

Na2S

C.

FeS

D.

ZnS

A.

7.0 mol dm-3

B.

3.5 mol dm-3

C.

2.0 mol dm-3

D.

10.0mol dm-3

A.

CO2, SO3 and H2

B.

SO2N2 and CO2

C.

H2, SO2 and CO2

D.

H2S, CO and N2

A.

Green

B.

Lilac

C.

Yellow

D.

Brick-red

A.

0.01 mol dm-3

B.

0.10 mol dm-3

C.

0.25 mol dm-3

D.

0.50 mol dm-3

A.

Blood

B.

Sand

C.

Washing soda

D.

Common salt

A.

Photosynthesis, decay and respiration

B.

Photosynthesis, respiration and transpiration

C.

Respiration, decay and combustion

D.

Ozone, depletion, combustion and decay

A.

Bubbled through concentrated Tetraoxosulphate(VI) acid

B.

Bubbled through sodium hydroxide

C.

Passed over heated copper(II) oxide

D.

Bubbled through water

A.

Using a larger closed vessel

B.

Increasing the temperature

C.

Removing some S

D.

Adding a positive catalyst

A.

Supersaturated

B.

Unsaturated

C.

Saturated

D.

Concentrated

A.

Ethanol

B.

Ethyne

C.

Ethane

D.

Ethane

A.

CH2 = CH2

B.

CH2 = CHI

C.

CH2 – CHI

D.

CH2 – CI3

A.

H2(g) + l2(g) ⇌ 2Hl(g)

B.

2NO2(g) ⇌ N2O4(g)

C.

PCl5(g) ⇌ PCl3(g) + Cl2(g)

D.

203(g) ⇌ 3O2(g)

A.

Benzene and methylbenzene

B.

Trichloromethane and Tetrachloromethane

C.

Ethanol and propanone

D.

But-1-ene and but-2-ene

A.

108.0g

B.

54.0g

C.

27.0g

D.

13.5g

A.

Atomic number

B.

Chemical properties

C.

Physical properties

D.

Number of shells

A.

Catalytic cracking

B.

Hydrocracking

C.

Polymerization

D.

Reforming

A.

2.5cm3

B.

0.4cm3

C.

0.1cm3

D.

5.0cm3

A.

Adding acidic solutions

B.

Using aerobic bacteria

C.

Pouring water on the affected area

D.

Burning off the oil from the area

A.

0.20 mol

B.

1, 12mol

C.

0.10 mol

D.

0.56 mol

A.

H2S

B.

SO3

C.

S8

D.

SO2

A.

Heat is supplied

B.

A new substance is formed

C.

Oxygen is consumed

D.

A reversible process occurs

A.

Oil

B.

Cyclohexane

C.

Cycloexane

D.

Margarine

A.

Steel and permalloy

B.

Duralumlin and steel

C.

nd Soft Solder a Duralumlin

D.

Brass and bronze

A.

C4H10

B.

C6H6

C.

C2H4

D.

C2H6

A.

AlCl3

B.

CaCl2

C.

MgCi2

D.

LiCl

A.

112cm3

B.

224cm3

C.

448cm3

D.

224cm3

A.

Ethyne

B.

Ethane

C.

Ethane

D.

Ethanol

A.

2,8,8

B.

2,,8,4

C.

2,8,5

D.

2,8,1

A.

AI2N

B.

AIN

C.

AI2N2

D.

AI2N3

A.

Some of its molecules are moving faster than others

B.

Of the collision of the molecules with each other

C.

Of the mass of the molecules of gas

D.

The molecules of a gas collide with the walls of the container

A.

Chlorine

B.

Hydrogen

C.

Sulphur(IV) oxide

D.

Nitrogen

A.

Nitride ores

B.

Chloride ores

C.

Oxide ores

D.

Sulphide ores

A.

K+

B.

NO-3

C.

S2-

D.

H3O+

A.

Chlorine

B.

Oxygen

C.

Ammonia

D.

Hydrogen

A.

OH-

B.

Cl-

C.

Cu2+

D.

H+

A.

Pink

B.

Orange

C.

Red

D.

Yellow

A.

Proceed spontaneously at lower temperatures

B.

Not proceed spontaneously at the given temperature

C.

Proceed spontaneously at the given temperature

D.

[proceed in the reverse direction at the given temperature

A.

Na

B.

K

C.

Ca

D.

Al

A.

CI

B.

SO

C.

NO

D.

CO

A.

Butane

B.

2-methylbutane

C.

2-methylprpane

D.

2-ethylbutane

A.

Neghative ion

B.

Positive ion

C.

Neutral atom of a non metal

D.

Neutral atom of a metal

A.

8

B.

18

C.

32

D.

2

A.

1.0 x 10-2 mol dm-3

B.

1.0 x 10-4 mol dm -3

C.

1.0 x 10-5 mol dm-3

D.

1.0 x 10-12 mol dm-3

A.

Water vapour

B.

Steam

C.

Smoke

D.

Heavy metals

A.

Decomposed

B.

Displaced

C.

Oxidized

D.

Reduced

A.

0.97g

B.

9.70g

C.

19.42g

D.

97.10g

A.

Passing the mixture into lime water

B.

Washing under pressure

C.

Drying over phosphorous(V)oxide

D.

Using ammoniac copper(l) chloride

A.

Gaseous hydrocarbons

B.

Oxide of lead

C.

Particulate matter

D.

Oxides of sulphur

A.

CH3COOH

B.

H2SO4

C.

HCL

D.

HNO3

A.

Addition reaction

B.

Elimination reaction

C.

Substitution reaction

D.

Neutralization reaction

A.

Octet configuration

B.

Cyclic shape

C.

Hexagonal shape

D.

Obtuse configuration

A.

Square planar

B.

Tetrahedral

C.

Planar

D.

Linear

A.

5s

B.

20s

C.

40s

D.

60s

A.

Air pollution

B.

Water pollution

C.

Increased humidity

D.

Flooding

A.

Colourless

B.

Yellow

C.

Red

D.

Orange

A.

Toluene

B.

Cyclopentane

C.

Cyclohexane

D.

Xylene

A.

15.00cm3

B.

6.00cm3

C.

0.63cm3

D.

0.06cm3

A.

Adding concentrated hydrochloric acid to solid manganese (IV) oxide

B.

Adding concentrated tetraoxosulphate (VI) acid to solid sodium chloride

C.

Dropping concentrated hydrochloric acid onto potassium tetraoxomanganate (VII) crystals

D.

Oxidizing concentrated hydrochloric acid using potassium heptaoxodichromate (VI) crystals

A.

Blue when viewed through a blue glass

B.

Green when viewed through a blue glass

C.

Orange-red when viewed through a blue glass

D.

Brick-red when viewed through a blue glass

A.

NaHS

B.

NaSO4

C.

NaHCO3

D.

Na2CO3

A.

-262 kJ mol-1

B.

-42kJ mol-1

C.

+42 kJ mol-1

D.

+262 kJ mol-1

A.

12.43

B.

6.86

C.

1.57

D.

 7.14

A.

HCI 

B.

H$_2$ S 

C.

N$_2$ H$_4$

D.

NO$_2$

A.

H$_3$ P$_4$

B.

HNO

C.

H$_2$ SO$_4$

D.

HCl

A.

C$_2$ H$_5$ OH 

B.

H$_2$ SO$_4$

C.

NaOH

D.

AgBr

A.

exothermic 

B.

endothermic 

C.

spontaneous 

D.

none

A.

CaCO$_3$

B.

Na$_2$ CO$_3$

C.

Ca(HCO$_3$ )$_2$

D.

CaCl$_2$

A.

H$_2$S has a higher molar mass

B.

H$_2$O contains hydrogen bonds in its molecules

C.

 H$_2$S has acidic properties

D.

H$_2$0 is a universal solvent

A.

28 

B.

14 

C.

56 

D.

122

A.

mass number 

B.

 atomic number

C.

atomic volume 

D.

atomic radius

A.

its vapour pressure is equal to the vapour pressure of its solid at a given temperature

B.

. its vapour pressure equal the atmospheric pressure 

C.

 its volume is slightly increased 

D.

molecules start escaping from its surface

A.

 Low temperature and high pressure 

B.

 Low temperature and low pressure 

C.

High temperature and low pressure

D.

high temperature and high pressure

A.

Hexanoic acid

B.

propanoic acid

C.

butanoic acid

D.

pentanoic acid

A.

hydrogen chloride

B.

hydrogen fluoride

C.

ammonia 

D.

ethanoic acid

A.

electrolysis of dilute HCl 

B.

electrolysis of brine

C.

 heating potassium trioxochlorate (V)

D.

neutralization of HCl.

A.

K 

B.

Fr 

C.

v

D.

Rb

A.

 C+ H$_2$0 → CO + H$_2$

B.

 Zn + 2HCl → ZnCl + H$_2$

C.

2Na + 2H$_2$0 → 2NaOH + H$_2$

D.

 2Al(s) + 3H$_2$0$_(l)$ → Al$_2$O$_3$ (s) 3H$_2$(g)

A.

CaCO

B.

Ca(HCO$_3$)$_2$

C.

CaCl

D.

CaSO$_4$

A.

ZnO 

B.

CaO 

C.

Na$_2$O 

D.

MgO

A.

(CHCOO)$_2$ Zn + Zn

B.

CHCOOCH3 + Zn

C.

(CHCOO)$_2$ Zn + H$_2$

D.

CH,COOH + CH$_2$

A.

harder soap

B.

softer soap

C.

 more soluble soap

D.

 soap with lower melting point

A.

2:5

B.

4:5

C.

3:8

D.

1:3

A.

When its volume is sufficiently decreased 

B.

When its vapour pressure equals the atmospheric pressure

C.

When its molecules start escaping from its surface

D.

When it is compressed enough

A.

J. J. Thompson

B.

James Chadwick

C.

 R. A. Milikan

D.

Ernest Rutherford

A.

 cathode and a direct current is used

B.

cathode and an alternating current is used

C.

anode and a direct current is used

D.

 anode and an alternating current is used.

A.

20$_3$$_(g)$ → 30$_2$$_(g)$

B.

 PCl$_5$(g) + PCl$_3$(s) + Cl$_2$ $_(g)$

C.

 2NO$2$ (g) + N$_2$O$_4$

D.

 H$_2$$_(g)$ + I2$_(g)$ => 2HI(g)

A.

sulphur (IV) oxide

B.

hydrogen sulphide

C.

 sulphur (VI) oxide

D.

hydrogenchloride

A.

Cu$^{2+}$

B.

Zn$^{2+}$

C.

Mg$^{2+}$

D.

Mg$^{2+}$

A.

Ca$^{2+}$

B.

Na$^+$

C.

Cu$^{2+}$

D.

K$^+$

A.

react with glycerol

B.

separate the soap from glycerol 

C.

purify the soap

D.

 make the soap less acidic

A.

CH$_4$

B.

Cl

C.

H$_2$O

D.

NH$_3$

A.

Negatively charged

B.

Positively charged

C.

Neutral

D.

Bipolar

A.

Aluminum tetraoxosulphate(VI)

B.

Copper tetratoxosulphate (VI)

C.

Sodium tetraoxosulphate(VI)

D.

Calcium tetraoxosulphate (VI)

A.

CO2, SO3 and H2

B.

SO2N2 and CO2

C.

H2, SO2 and CO2

D.

H2S, CO and N2

A.

It becomes zero

B.

It decreases

C.

It increases

D.

It is unaffected

A.

Atomic number

B.

Chemical properties

C.

Physical properties

D.

Number of shells

A.

Burning kerosene

B.

Freezing ice-cream

C.

Exposing white phosphorus to air

D.

Dissolving calcium in water

A.

Electrons in the d orbitals

B.

Electrons in the s orbitals

C.

A variable number of electrons in the p orbitals

D.

Partially filled p orbitals

A.

Electroplating

B.

Arc-welding

C.

Reducing a mixture of their metallic oxides

D.

Cooling a molten mixture of the metals

A.

H2(g) + l2(g) ⇌ 2Hl(g)

B.

2NO2(g) ⇌ N2O4(g)

C.

PCl5(g) ⇌ PCl3(g) + Cl2(g)

D.

203(g) ⇌ 3O2(g)

A.

125cm3

B.

1250cm3

C.

2500cm3

D.

80cm3

A.

2 V cm3

B.

V 2cm3

C.

V cm3

D.

4 V cm3

A.

Sp3 and sp

B.

Sp3 and sp2

C.

Sp

D.

Sp2

A.

Readily reacts with water

B.

Is reduced by atmospheric nitrogen

C.

Reacts vigorously on exposure to air

D.

Reacts with oxygen and carbon(IV) oxide

A.

Salt

B.

Dye

C.

Mordant

D.

Dispersant

A.

CaSO4

B.

Na2CO3

C.

PbCl2

D.

AgCl

A.

The activation energy

B.

The potential energy of the reactants

C.

The heat of reaction

D.

The potential energy of the products

A.

Break down rubber polymer

B.

Lengthen the chain of rubber

C.

Bind rubber molecules together

D.

Act as a catalyst

A.

Tribasic

B.

Unionizeable

C.

Monobasic

D.

Dibasic

A.

Na2SO4

B.

NaHSO4

C.

Na2SO3

D.

NaHSO3

A.

Equal masses with a release of energy

B.

Nearly equal masses with a release of energy and radiation

C.

Equal masses with a release of energy and radiation

D.

Unequal masses without any release of energy

A.

Weak intermolecular attraction

B.

High boiling point

C.

High melting point

D.

Strong intermolecular attraction

A.

Heating

B.

Hydration

C.

Dehydration

D.

Hydrolysis

A.

X

B.

W

C.

Z

D.

Y

A.

Dichloromethane

B.

Tetrachloromethane

C.

Chloromethane

D.

Trichloromethane

A.

0.8g

B.

4.0g

C.

40.0g

D.

80.0g

A.

Palm wine

B.

Palm oil

C.

Ethanoic acid

D.

Water

A.

Water vapour

B.

Steam

C.

Smoke

D.

Heavy metals

A.

Na2CO3

B.

CH3COONa

C.

NH4Cl

D.

AlCl3

A.

The total mass of the protons in a particular nucleus always half the nuclear mass

B.

The mass of a proton is 1840 times the mass of an electron

C.

The mass proton is 1.0008g

D.

The mass of a proton is one-twelfth the molar mass of carbon

A.

Electrons are consumed

B.

Oxidation is involved

C.

Ions are reduced

D.

Electrode dissolves

A.

Polymerization

B.

Substitution

C.

Fermentation

D.

Hydrolysis

A.

Adding acidic solutions

B.

Using aerobic bacteria

C.

Pouring water on the affected area

D.

Burning off the oil from the area

A.

2.5 moles of Cu2+

B.

4.0 moles of CI-

C.

2.0 moles of Al3+

D.

3.0 moles of Na+

A.

Invertase

B.

Amylase

C.

Lactose

D.

Maltase

A.

makes the iron metal solidity very quickly

B.

Combines with oxygen to give a pop sound

C.

Evolves a lot of heat when burnt

D.

Dissociates to produce carbon (IV) oxide and oxygen

A.

Na

B.

K

C.

Ca

D.

Al

A.

CH2 = CH2

B.

CH2 = CHI

C.

CH2 – CHI

D.

CH2 – CI3

A.

React with each other

B.

React with the solvent

C.

Dissolve in each other in the column

D.

Move at different speeds in the column

A.

Ionic

B.

Covalent

C.

Coordinate covalent

D.

Van der Waals

A.

2.5

B.

0.4

C.

0.25

D.

4

A.

Treatment with acids

B.

Oxidation

C.

Blast reduction

D.

Treatment with alkalis

A.

SO2 and NO

B.

CO2 and H2O

C.

CO and CO2

D.

NO and H2O

A.

Bohr

B.

Thompson

C.

Rutherford

D.

Dalton

A.

Evaporation

B.

Distillation

C.

Crystallization

D.

Sublimation

A.

Sp2

B.

Sp2d

C.

Sp3

D.

sp

A.

High temperature

B.

Any temperature

C.

Low temperature

D.

Minimum temperature

A.

Green

B.

Lilac

C.

Yellow

D.

Brick-red

A.

H2S

B.

SO3

C.

S8

D.

SO2

A.

Renders the metal passive

B.

Is strongly oxidizing

C.

Is volatile

D.

A.

A reaction gives back the reactants

B.

Reactants are converted to products

C.

The concentration of reactants and products is equal

D.

Both forward and reverse reaction proceed at the same rate

A.

Oxygen

B.

Fluorine

C.

hydrogen

D.

nitrogen

A.

Colourless solution

B.

Purple precipitate

C.

Purple solution

D.

Colourless precipitate

A.

26.0g

B.

31.0g

C.

54.0g

D.

44.0g

A.

Pouring detergents

B.

Passing of ships through the area

C.

Pouring organic solvents

D.

Evaporation

A.

Concentration

B.

Solubility

C.

Quantity

D.

Surface area

A.

Decomposed

B.

Displaced

C.

Oxidized

D.

Reduced

A.

weakly acdic

B.

neutral

C.

acidic

D.

alkaline

A.

850cm3

B.

750cm3

C.

650cm3

D.

580cm3

A.

NH4OH

B.

CH3COONa

C.

HCI

D.

NaOH

A.

CH3CH2CH3

B.

CH3CH = CH2

C.

CH3CH2C = CH

D.

CH3C = CH

A.

Reduction

B.

Oxidation

C.

Hydration

D.

Absorption

A.

15.3cm3

B.

87.3cm3

C.

97.0cm3

D.

552.0cm3

A.

22.4 dm3

B.

33.6 dm3

C.

44.8 dm3

D.

67.2 dm3

A.

Passing the mixture into lime water

B.

Washing under pressure

C.

Drying over phosphorous(V)oxide

D.

Using ammoniac copper(l) chloride

A.

-285.8Kj

B.

-571.6kJ

C.

+571kJ

D.

+285.8kJ

A.

Metals

B.

Semi-metals

C.

Colloids

D.

Non-metals

A.

White to red

B.

Blue to white

C.

White to green

D.

Blue to pink

A.

2

B.

1

C.

0

D.

3

A.

Hydrogen bonding

B.

Covalent nature

C.

Ionic character

D.

Boiling point

A.

Butane

B.

2-methylbutane

C.

2-methylprpane

D.

2-ethylbutane

A.

16

B.

18

C.

12

D.

14

A.

Hydrogenation of oils

B.

Manufacture of methyl alcohol

C.

Manufacture of ammonia

D.

Manufacture of ethyl alcohol

A.

Square planar

B.

Tetrahedral

C.

Planar

D.

Linear

A.

2 valence electrons

B.

3 valence electrons

C.

7 valence electrons

D.

Valence electrons

A.

Colourless

B.

Yellow

C.

Red

D.

Orange

A.

Adding concentrated hydrochloric acid to solid manganese (IV) oxide

B.

Adding concentrated tetraoxosulphate (VI) acid to solid sodium chloride

C.

Dropping concentrated hydrochloric acid onto potassium tetraoxomanganate (VII) crystals

D.

Oxidizing concentrated hydrochloric acid using potassium heptaoxodichromate (VI) crystals

A.

Asbestos dust

B.

Sawdust

C.

Nitrogen(II) oxide

D.

Carbon (II) oxide

A.

13.10%

B.

17.10%

C.

27.60%

D.

8.5

A.

Heat is supplied

B.

A new substance is formed

C.

Oxygen is consumed

D.

A reversible process occurs

A.

00C

B.

-1000C

C.

-2730C

D.

-3730C

A.

The bonds in the reacting molecules are more readily broken

B.

The molecules collisions become more violent

C.

A lower proportion of the molecules has the necessary minimum energy to react

D.

The collision frequency of the molecules increases

A.

Particles of different elements combine in a simple whole number ratio

B.

Atoms can neither be created nor destroyed

C.

The particles of the same element are exactly alike

D.

All elements are made of small indivisible particles

A.

Gaseous hydrocarbons

B.

Oxide of lead

C.

Particulate matter

D.

Oxides of sulphur

A.

Have no definite shape

B.

Have little force attraction between them

C.

Can collide with one another in the container

D.

Are too small in size

A.

Steel and permalloy

B.

Duralumlin and steel

C.

nd Soft Solder a Duralumlin

D.

Brass and bronze

A.

Pink

B.

Colourless

C.

Red

D.

Dark blue

A.

39

B.

352g

C.

264g

D.

156g

A.

Chlorine gas and hydrogen

B.

Oxygen and oxochlorate(l) acid

C.

Hydrochloric acid and oxygen

D.

A.

CH3COOH

B.

H2SO4

C.

HCL

D.

HNO3

A.

108.0g

B.

54.0g

C.

27.0g

D.

13.5g

A.

Ethanol

B.

Ethyne

C.

Ethane

D.

Ethane

A.

Each of carbon and sulphur has 89kJ of energy

B.

Both carbon and sulphur contribute 89kJ of energy

C.

89kJ of energy is released

D.

89kJ is absorbed

A.

The spoon will be reduced while the iron(II) ions will be oxidized

B.

The spoon will be oxidized while the iron (II) ions will be reduced to the metal

C.

The spoon will be reduced

D.

The spoon will increase in size

A.

C4H10

B.

C6H6

C.

C2H4

D.

C2H6

A.

Distillation

B.

Condensation

C.

Extraction

D.

EvapopraTION

A.

0.91

B.

0.009

C.

1.09

D.

0.093

A.

Metallic ion

B.

Non-metallic ion

C.

Neutral metal

D.

Neutral non-metal

A.

Argon

B.

Helium

C.

Neon

D.

Krypton

A.

Neon and hydrogen

B.

Nitrogen and helium

C.

Helium and neon

D.

Neon and nitrogen

A.

It forms Tetraoxosulphate (VI) acid with water

B.

It is an odourless gas

C.

It is an acid anhydride

D.

It forms white precipitate with acidified barium chloride

A.

Co2

B.

NO2

C.

NO

D.

CO

A.

Addition

B.

Hydrolysis

C.

Polymerization

D.

Substitution

A.

I and II

B.

I and III

C.

I and IV

D.

III and IV

A.

0.97g

B.

9.70g

C.

19.42g

D.

97.10g

A.

6.3g

B.

40.0g

C.

62.5g

D.

2.5g

A.

2.0 moldm-3 of ethanoic acid

B.

0.5 mol dm-3 of ethanoic acid

C.

2.0 mol dm-3 of hydrochloric acid

D.

0.5 moldm-3 of hydrochloric acid

A.

Neghative ion

B.

Positive ion

C.

Neutral atom of a non metal

D.

Neutral atom of a metal

A.

Chlorine

B.

Sulphur(IV)oxide

C.

Ammonia

D.

Carbon(IV)oxide

A.

Greater than 8.4

B.

Unaltered

C.

Close to that of pure water

D.

Less than 8.4

A.

C4H10 → C7H16 → C3H7OH

B.

C7H16 → C3H7OH → C4H16

C.

C4H10 → C3H7OH → C4H10

D.

C3H7OH → C4H10 → C7H16

A.

A monomer

B.

The single bond

C.

The double bond

D.

A polymer

A.

1s22s22p63s23p5

B.

1s22s22p63s23p4

C.

3s23p5

D.

2s22p6

A.

Zn(NO3)2

B.

CaSO4

C.

CuSO4

D.

CaCO3

A.

Hydrogen and trioxocarbonate(IV) acid

B.

Hydrogen, oxygen and carbon(IV) oxide

C.

Hydrogen and carbon (II) oxide

D.

Hydrogen and carbon (IV) oxide

A.

Decrease

B.

Increase

C.

Remain constant

D.

Be zero

A.

Volume

B.

Vapour density

C.

Pressure

D.

Temperature

A.

Ammonia

B.

Hydrogen bromide

C.

Sulphur (IV) oxide

D.

Hydrogen sulphide

A.

Pink

B.

Orange

C.

Red

D.

Yellow

A.

Solution

B.

Suspension

C.

Precipitate

D.

Colloid

A.

A constant volume

B.

An increase in pressure

C.

A decrease in pressure

D.

A decrease in volume

A.

Deliquescence

B.

Effervescence

C.

Efflorescence

D.

Fluorescence

A.

CH2O

B.

C3H6O3

C.

C6H12O6

D.

C6H6O3

A.

OH-

B.

Cl-

C.

Cu2+

D.

H+

A.

Supersaturated

B.

Unsaturated

C.

Saturated

D.

Concentrated

A.

Alcohol

B.

Sodium acetate solution

C.

Solid potassium hydroxide

D.

Mercury

A.

Anahydrous iron (III) oxide

B.

Anhydrous iron (II) oxide

C.

Hydrated iron (II) oxide

D.

Hydrated iron (III) oxide

A.

Saponification

B.

Esterification

C.

Acidification

D.

Hydrolysis

A.

20

B.

25

C.

60

D.

75

A.

O2+

B.

Ca2+

C.

K+

D.

Mg2+

A.

-503.7kJ

B.

-282.6kJ

C.

+282.6kJ

D.

+503.7kJ

A.

Carbon(IV) oxide and water

B.

Oxygen and water

C.

Hydrogen and water

D.

Carbon(II)oxide an d water

A.

FeSO4(aq) + NO(g) → Fe(NO)SO4(S)

B.

2NO(g) + O2(g) → 2NO2(g)

C.

NO(g) + CI2(g) → NOCI2(l)

D.

NO(g) + Br2(l) → NOBr2(l)

A.

K2CO3

B.

NaHCO3

C.

Na2CO3

D.

K2SO4

A.

Diamond

B.

Coal

C.

Wood

D.

Graphite

A.

Fe

B.

Cu

C.

Ca

D.

Sn

A.

Tools

B.

Coins and medals

C.

Moving parts of clocks

D.

Magnets

A.

1.0 x 10-2 mol dm-3

B.

1.0 x 10-4 mol dm -3

C.

1.0 x 10-5 mol dm-3

D.

1.0 x 10-12 mol dm-3

A.

Have duplet or octet electron configurations

B.

Belong to group zero of the periodic table

C.

Are volatile in nature

D.

Have no electron in their outermost shells

A.

ethane

B.

propane

C.

butane

D.

butane

A.

Dioxonitrate(III) ion

B.

Dioxonitrate(IV) ION

C.

trioxonitrate(iii) ion

D.

trioxonitrate(iv) ion

A.

Rate of diffusion

B.

Solubility

C.

Density

D.

Boiling point

A.

H2(g)

B.

O2(g)

C.

HCI(g)

D.

Cl2(g)

A.

4 moles of chlorine

B.

3 moles of ozone

C.

1 mole of butane

D.

7 moles of argon

A.

15.00cm3

B.

6.00cm3

C.

0.63cm3

D.

0.06cm3

A.

Graphite

B.

Soot

C.

Charcoal

D.

Lampblack

A.

Turpentine

B.

A solution of borax in water

C.

Ammonia solution

D.

Kerosene

A.

H2O(l)

B.

PH3(g)

C.

AgNO3(aq)

D.

HNO3(AQ)

A.

General formula

B.

Structural formula

C.

Molecular formula

D.

Empirical formula

A.

Bromine water

B.

Acidified KMnO4

C.

Copper (I) chloride

D.

Bromine gas