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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57

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

1 / 12

Which of the following is a heterocyclic compound?

Benzene

Thiophene

Cyclohexane

Cyclopentene

2 / 12

Which of the following is a Lewis base?

AlCl_{ 3 }

B{ F }_{ 3 }

{ F }^{ - }

HCl

3 / 12

In an irreversible reaction, equilibrium is:

Never established

Established quickly

Established slowly

Established when reaction stops

4 / 12

What is the colour of phenolphthalein in acidic medium?

Pink

Orange

Colourless

Red

5 / 12

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

{ NH }_{ 3 } and NaCl

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

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

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

6 / 12

Which of the following is used as domestic fuel?

Ethyne

Ethanol

Methane

Chloroform

7 / 12

Most of air pollution is caused by:

The burning of fossil fuels

Ozone

Acid rain

CO

8 / 12

Which of the following is not a waterborne disease?

Typhoid

Hepatitis

Anemia

Dysentery

9 / 12

Which of the following layers contains ozone gas?

Mesosphere

Stratosphere

Thermosphere

Troposphere

10 / 12

Plants convert glucose into:

Starch

Amino acids

Lipids

Proteins

11 / 12

Formic acid contains functional group:

−OH

−CO−

−CHO

−COOH

12 / 12

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

Ethane

Ethyne

Ethanol

Ethene

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Past Paper 2018 (Overseas)
Practice MCQs Test

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64

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

1 / 12

Which of the following is not a source of starch?

Potato

Cotton

Wheat

Rice

2 / 12

Which of the following is used for ripening of fruits?

Benzene

Ethanol

Ethyne

Methane

3 / 12

What is the colour of methyl red in basic solution?

Red

Orange

Yellow

Pink

4 / 12

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

Esters

Alcohols

Phenols

Ethers

5 / 12

Which of the following is a homocyclic compound?

Benzene

Thiophene

Pyridine

Furan

6 / 12

Which of the following is responsible for acid rain?

CO

{ O_{ 3 } }

{ SO_{ 2 } }

{ CH_{ 4 } }

7 / 12

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

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

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

{ NH }_{ 3 } and CO

{ NH }_{ 3 } and Brine

8 / 12

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

{ Br_{ 2 } } water

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

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

Alcoholic KOH

9 / 12

Which of the following causes brain damage in children?

Ozone

Lead compounds

{ CO_{ 2 } }

{ SO_{ 2 } }

10 / 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

11 / 12

Which of the following cannot be classified as Arrhenius acid?

{ CO }_{ 2 }

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

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

{ HNO }_{ 3 }

12 / 12

The density of water is maximum at:

-4 °C

100 °C

4 °C

0 °C

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Past Paper 2018 (Supp)
Practice MCQs Test

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35

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

1 / 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

2 / 12

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

Monosaccharide

Polysaccharide

Disaccharide

Trisaccharide

3 / 12

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

Ketones

Ethers

Aldehydes

Esters

4 / 12

Chemical formula of Slaked lime is:

Ca{ (OH) }_{ 2 }

CaC{ O }_{ 3 }

Ca{ Cl }_{ 2 }

CaO

5 / 12

___________ is used to make rectified spirit by fermentation process

Glucose

Starch

Sucrose

Cellulose

6 / 12

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

Stratosphere

Mesosphere

Thermosphere

Troposphere

7 / 12

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

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

HI

{ H }_{ 2 }

{ I }_{ 2 }

8 / 12

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

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

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

No units

{ mol }.{ dm }^{ 3 }

9 / 12

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

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

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

Zinc + Dust

Zn + HCl

10 / 12

At what pH does Phenolphthalein change its colour?

5.5

9

7

11

11 / 12

Which process produces an alkane?

Hydrogenation

Dehydration

Hydration

Combustion

12 / 12

__________ is used for artificial ripening of fruits.

Methanol

Benzene

Acetylene

Ethylene

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