Chemistry 10 Past Papers 2019 MCQs Tests

Federal Board, FBISE Chemistry 10 MCQs Tests of 2019 Past Papers are available on this page. There are two Chemistry papers conducted in 2019, the one is taken within Pakistan and the second paper is an overseas paper. MCQs Tests for both papers are given below. Chapter-wise MCQs Tests of Chemistry 10 are available HERE.

Past Paper 2019 (Local)
Practice MCQs Test

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13

Class 10 Chemistry
Past Paper 2019 (Local)
Practice MCQs Test

1 / 12

Chemical formula of ammonium carbamate is:

{ NH }_{ 2 }CON{ H }_{ 2 }

{ (NH }_{ 4 })_{ 2 }SO_{ 4 }

{ NH }_{ 2 }COON{ H }_{ 4 }

{ NH }_{ 4 }N{ O }_{ 3 }

2 / 12

What will happen if [O{ H }^{ - }] increases?

Solution becomes Neutral

Solution becomes unpredictable

Solution becomes Basic

Solution becomes acidic

3 / 12

Which of the following is a Lewis acid?

B{ F }_{ 3 }

O{ H }^{ - }

N{ H }_{ 3 }

{ F }^{ - }

4 / 12

Fehling’s solution is used to determine the presence of:

Ketone

Alcohol

Aldehyde and Ketone

Phenol

5 / 12

Raffinose produces ______ units of simple sugars when hydrolyzed.

3

4

5

2

6 / 12

Which of the following process is reduction in nature?

Grinding

Smelting

Roasting

Floatation

7 / 12

Permanent hardness of water can be removed by:

Boiling

Clark’s method

Ion exchange method

Cooling

8 / 12

Each DNA nucleotide consists of:

4 components

2 components

5 components

3 components

9 / 12

What are the units of Kc for
{ N }_{ 2(g) }+{ O }_{ 2(g) }\rightleftharpoons 2{ N }_{ 2(g) } ?

{ mol } { dm }^{ -3 }

No units

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

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

10 / 12

The substance which fight against diseases in living organisms are:

Enzymes

Proteins

Carbohydrates

Lipids

11 / 12

Identify molecule produced when electrical discharges pass through oxygen in air:

\frac { 1 }{ 2 } { O }_{ 2 }

{ O }_{ 4 }

{ O }_{ 2 }

{ O }_{ 3 }

12 / 12

Which of the following is an aldehyde?

{ CH }_{ 3 }{ COCH }_{ 3 }

{ CH }_{ 3 }{ CH }_{ 2 }CHO

{ CH }_{ 3 }COOH

{ C }_{ 6 }{ H }_{ 5 }OH

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Past Paper 2019 (Overseas)
Practice MCQs Test

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13

Class 10 Chemistry
Past Paper 2019 (Overseas)
Practice MCQs Test

1 / 12

Formic acid contains _______ functional group.

−COOH

−CHO

−CO−

−OH

2 / 12

Identify the compound responsible for acid rain:

Sulphur dioxide

Vicinal dihalide

Chlorofluorocarbons

Glyoxal

3 / 12

A drain cleaner contains 1.0 × { 10 }^{ -8 }M, { OH }^{ - } concentration, this solution is:

Basic

Unpredictable

Neutral

Acidic

4 / 12

For which reaction Kc has NO units?

2ICl\rightleftharpoons I_{ 2 }+{ Cl }_{ 2 }

2N{ O }_{ 2 }\rightleftharpoons { N }_{ 2 }{ O }_{ 4 }

PC{ l }_{ 5 }\rightleftharpoons PCl_{ 3 }+{ Cl }_{ 2 }

{ N }_{ 2 }+3{ H }_{ 2 }\rightleftharpoons 2N{ H }_{ 3 }

5 / 12

Baeyer’s test is used to detect the presence of:

Alkane

Aldehyde

Ketone

Alkene

6 / 12

The linkage which joins two amino acids is called:

Covalent Bond

Ionic Bond

Peptide Bond

Metallic Bond

7 / 12

Halite is an ore of:

Zinc

Iron

Sodium

Copper

8 / 12

Percentage of nitrogen in urea is:

35

21.2

46.6

80

9 / 12

The word vitamin was first used by:

Casmir Funk

F.G. Hopkins

Francis Crick

C. Eijkman

10 / 12

The volumetric ratio between hydrogen and oxygen in water is:

1:08

2:01

2:02

3:01

11 / 12

Which compound has two halogen atoms on adjacent carbon atoms?

Alkyle halide

Ester

Ether

Vicinal dihalide

12 / 12

In the given reaction which species is donating an electron pair?
{ NH }_{ 3 }+{ BF }_{ 3 }\rightarrow { H }_{ 3 }N-{ BF }_{ 3 }

H

B

{ BF }_{ 3 }

N

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