Chemistry 10 Past Papers 2018 MCQs Tests

Federal Board, FBISE Chemistry 10 MCQs Tests of 2018 Past Papers are available on this page. There are three Chemistry papers conducted in 2018, the one is taken within Pakistan and the second paper is an overseas paper and the third one is Supplemanetary Paper. MCQs Tests for both papers are given below. Chapter-wise MCQs Tests of Chemistry 10 are available HERE.

Past Paper 2018 (Local)
Practice MCQs Test

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7

Class 10 Chemistry
Past Paper 2018 (Local)
Practice MCQs Test

1 / 12

Which of the following is a heterocyclic compound?

Thiophene

Cyclopentene

Benzene

Cyclohexane

2 / 12

Plants convert glucose into:

Proteins

Amino acids

Starch

Lipids

3 / 12

Which of the following is not a waterborne disease?

Typhoid

Dysentery

Anemia

Hepatitis

4 / 12

Which of the following is a Lewis base?

HCl

AlCl_{ 3 }

{ F }^{ - }

B{ F }_{ 3 }

5 / 12

Which of the following is used as domestic fuel?

Methane

Chloroform

Ethanol

Ethyne

6 / 12

In an irreversible reaction, equilibrium is:

Never established

Established quickly

Established when reaction stops

Established slowly

7 / 12

Formic acid contains functional group:

−COOH

−CO−

−OH

−CHO

8 / 12

Most of air pollution is caused by:

CO

Ozone

Acid rain

The burning of fossil fuels

9 / 12

What is the colour of phenolphthalein in acidic medium?

Orange

Pink

Colourless

Red

10 / 12

Which of the following is used as raw material for preparation of urea?

{ CO }_{ 2 } and { NH }_{ 3 }

{ CO }_{ 2 } and { Ca(OH) }_{ 2 }

{ NH }_{ 3 } and NaCl

{ H }_{ 2 }O and { NH }_{ 3 }

11 / 12

Which of following reacts with concentrated alkaline KMn{ O }_{ 4 } to produce oxalic acid?

Ethyne

Ethane

Ethene

Ethanol

12 / 12

Which of the following layers contains ozone gas?

Troposphere

Mesosphere

Stratosphere

Thermosphere

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Past Paper 2018 (Overseas)
Practice MCQs Test

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8

Class 10 Chemistry
Past Paper 2018 (Overseas)
Practice MCQs Test

1 / 12

What is the colour of methyl red in basic solution?

Pink

Yellow

Red

Orange

2 / 12

Which of the following is used for dehydrohalogenation of alkyl halides?

Conc. { { H }_{ 2 }SO }_{ 4 }

{ Br_{ 2 } } water

{ Al_{ 2 }{ O }_{ 3 } }

Alcoholic KOH

3 / 12

Which of the following does not happen, when a system is at equilibrium state?

Forward and reverse reactions occur at same rate

Concentration of reactants and products stop changing

Reaction continues to occur in both the directions

Forward and reverse reactions stop

4 / 12

Which of the following is used as raw material for Solvay process?

{ NH }_{ 3 } and Brine

{ NH }_{ 3 } and CO

{ CH }_{ 4 } and { CO }_{ 2 }

Ca{ (OH) }_{ 2 } and { CH }_{ 4 }

5 / 12

Which of the following is responsible for acid rain?

CO

{ CH_{ 4 } }

{ SO_{ 2 } }

{ O_{ 3 } }

6 / 12

In which of the following compounds, oxygen is attached to two alkyl groups?

Alcohols

Phenols

Ethers

Esters

7 / 12

Which of the following is used for ripening of fruits?

Ethyne

Methane

Benzene

Ethanol

8 / 12

Which of the following is not a source of starch?

Wheat

Potato

Cotton

Rice

9 / 12

The density of water is maximum at:

0 °C

100 °C

-4 °C

4 °C

10 / 12

Which of the following cannot be classified as Arrhenius acid?

{ { H }_{ 2 }SO }_{ 4 }

{ { H }_{ 2 }CO }_{ 3 }

{ CO }_{ 2 }

{ HNO }_{ 3 }

11 / 12

Which of the following causes brain damage in children?

Lead compounds

{ CO_{ 2 } }

{ SO_{ 2 } }

Ozone

12 / 12

Which of the following is a homocyclic compound?

Furan

Benzene

Pyridine

Thiophene

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Past Paper 2018 (Supp)
Practice MCQs Test

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5

Class 10 Chemistry
Past Paper 2018 (Supp)
Practice MCQs Test

1 / 12

What is the unit of equilibrium constant for
{ N }_{ 2 }+{ O }_{ 2 }\rightleftharpoons 2N{ O }_{ 2 }

No units

{ mol }^{ 2 }.{ dm }^{ -6 }

{ dm }^{ 3 }.{ mol }^{ -1 }

{ mol }.{ dm }^{ 3 }

2 / 12

The atmospheric layer that has the temperature range of −5 °C to −93°C is:

Troposphere

Mesosphere

Stratosphere

Thermosphere

3 / 12

In which of the following hydrocarbons, oxygen is attached to two alkyl groups?

Ketones

Esters

Ethers

Aldehydes

4 / 12

For a reversible reaction
K_{ C }=\frac { [HI]^{ 2 } }{ [{ H }_{ 2 }][{ I }_{ 2 }] }
which substance is product of the reaction?

{ H }_{ 2 }

HI

{ I }_{ 2 }

Both { H }_{ 2 }and { I }_{ 2 }

5 / 12

Raffinose ({ C }_{ 18 }{ H }_{ 32 }{ O }_{ 16 }) is a:

Disaccharide

Trisaccharide

Monosaccharide

Polysaccharide

6 / 12

Which of the following acids is used in the manufacturing of many chemicals, drugs, dyes, paints and explosives?

{ H }_{ 2 }S{ O }_{ 4 }

{ HNO }_{ 3 }

{ H }_{ 3 }P{ O }_{ 4 }

HCl

7 / 12

At what pH does Phenolphthalein change its colour?

7

9

11

5.5

8 / 12

The reduction of alkyl halides takes place in the presence of:

{ Al }_{ 2 }{ O }_{ 3 } at 350^{ O }C

Zinc + Dust

Conc. H_{ 2 }S{ O }_{ 4 } at 170^{ O }C

Zn + HCl

9 / 12

Which process produces an alkane?

Combustion

Hydrogenation

Dehydration

Hydration

10 / 12

__________ is used for artificial ripening of fruits.

Methanol

Ethylene

Acetylene

Benzene

11 / 12

___________ is used to make rectified spirit by fermentation process

Starch

Cellulose

Sucrose

Glucose

12 / 12

Chemical formula of Slaked lime is:

CaO

CaC{ O }_{ 3 }

Ca{ (OH) }_{ 2 }

Ca{ Cl }_{ 2 }

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