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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83

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

1 / 12

Which of the following is an aldehyde?

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

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

{ CH }_{ 3 }COOH

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

2 / 12

Raffinose produces ______ units of simple sugars when hydrolyzed.

2

5

3

4

3 / 12

Chemical formula of ammonium carbamate is:

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

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

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

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

4 / 12

The substance which fight against diseases in living organisms are:

Proteins

Lipids

Carbohydrates

Enzymes

5 / 12

Which of the following process is reduction in nature?

Roasting

Smelting

Floatation

Grinding

6 / 12

Which of the following is a Lewis acid?

{ F }^{ - }

N{ H }_{ 3 }

B{ F }_{ 3 }

O{ H }^{ - }

7 / 12

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

Ketone

Phenol

Aldehyde and Ketone

Alcohol

8 / 12

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

{ O }_{ 2 }

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

{ O }_{ 3 }

{ O }_{ 4 }

9 / 12

Each DNA nucleotide consists of:

2 components

4 components

3 components

5 components

10 / 12

Permanent hardness of water can be removed by:

Boiling

Ion exchange method

Cooling

Clark’s method

11 / 12

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

Solution becomes unpredictable

Solution becomes acidic

Solution becomes Neutral

Solution becomes Basic

12 / 12

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

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

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

No units

{ mol } { dm }^{ -3 }

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Past Paper 2019 (Overseas)
Practice MCQs Test

/12

94

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

1 / 12

The word vitamin was first used by:

C. Eijkman

Casmir Funk

F.G. Hopkins

Francis Crick

2 / 12

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

Alkene

Aldehyde

Ketone

Alkane

3 / 12

Identify the compound responsible for acid rain:

Chlorofluorocarbons

Sulphur dioxide

Glyoxal

Vicinal dihalide

4 / 12

The volumetric ratio between hydrogen and oxygen in water is:

3:01

2:01

2:02

1:08

5 / 12

The linkage which joins two amino acids is called:

Metallic Bond

Ionic Bond

Peptide Bond

Covalent Bond

6 / 12

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

Unpredictable

Acidic

Basic

Neutral

7 / 12

Percentage of nitrogen in urea is:

35

80

21.2

46.6

8 / 12

For which reaction Kc has NO units?

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

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

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

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

9 / 12

Halite is an ore of:

Copper

Sodium

Zinc

Iron

10 / 12

Formic acid contains _______ functional group.

−CHO

−OH

−CO−

−COOH

11 / 12

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

B

{ BF }_{ 3 }

H

N

12 / 12

Which compound has two halogen atoms on adjacent carbon atoms?

Ether

Ester

Alkyle halide

Vicinal dihalide

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