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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50

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

1 / 12

Raffinose produces ______ units of simple sugars when hydrolyzed.

3

5

2

4

2 / 12

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

No units

\({ mol }^{ 2 }.{ dm }^{ -6 }\)

\( { mol } { dm }^{ -3 }\)

\({ dm }^{ 3 }.{ mol }^{ -1 }\)

3 / 12

Each DNA nucleotide consists of:

3 components

4 components

2 components

5 components

4 / 12

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

Ketone

Alcohol

Phenol

Aldehyde and Ketone

5 / 12

Which of the following is an aldehyde?

[katex]{ CH }_{ 3 }COOH[/katex]

[katex]{ CH }_{ 3 }{ COCH }_{ 3 }[/katex]

[katex]{ C }_{ 6 }{ H }_{ 5 }OH[/katex]

[katex]{ CH }_{ 3 }{ CH }_{ 2 }CHO[/katex]

6 / 12

Chemical formula of ammonium carbamate is:

[katex]{ NH }_{ 2 }CON{ H }_{ 2 }[/katex]

[katex]{ NH }_{ 2 }COON{ H }_{ 4 }[/katex]

[katex]{ (NH }_{ 4 })_{ 2 }SO_{ 4 }[/katex]

[katex]{ NH }_{ 4 }N{ O }_{ 3 }[/katex]

7 / 12

Which of the following is a Lewis acid?

[katex]O{ H }^{ - }[/katex]

[katex]B{ F }_{ 3 }[/katex]

[katex]N{ H }_{ 3 }[/katex]

[katex]{ F }^{ - }[/katex]

8 / 12

The substance which fight against diseases in living organisms are:

Enzymes

Lipids

Proteins

Carbohydrates

9 / 12

Which of the following process is reduction in nature?

Floatation

Smelting

Roasting

Grinding

10 / 12

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

Solution becomes Neutral

Solution becomes acidic

Solution becomes unpredictable

Solution becomes Basic

11 / 12

Permanent hardness of water can be removed by:

Ion exchange method

Boiling

Cooling

Clark’s method

12 / 12

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

[katex]{ O }_{ 2 }[/katex]

[katex] \frac { 1 }{ 2 } { O }_{ 2 }[/katex]

[katex]{ O }_{ 3 }[/katex]

[katex]{ O }_{ 4 }[/katex]

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Past Paper 2019 (Overseas)
Practice MCQs Test

/12

41

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

1 / 12

The word vitamin was first used by:

Francis Crick

F.G. Hopkins

Casmir Funk

C. Eijkman

2 / 12

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

Aldehyde

Alkene

Ketone

Alkane

3 / 12

Percentage of nitrogen in urea is:

80

35

21.2

46.6

4 / 12

Halite is an ore of:

Zinc

Copper

Sodium

Iron

5 / 12

The volumetric ratio between hydrogen and oxygen in water is:

3:01

1:08

2:01

2:02

6 / 12

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

Basic

Unpredictable

Acidic

Neutral

7 / 12

Which compound has two halogen atoms on adjacent carbon atoms?

Ether

Ester

Alkyle halide

Vicinal dihalide

8 / 12

The linkage which joins two amino acids is called:

Metallic Bond

Covalent Bond

Peptide Bond

Ionic Bond

9 / 12

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

H

N

B

\({ BF }_{ 3 }\)

10 / 12

For which reaction Kc has NO units?

[katex]PC{ l }_{ 5 }\rightleftharpoons PCl_{ 3 }+{ Cl }_{ 2 }[/katex]

[katex]2ICl\rightleftharpoons I_{ 2 }+{ Cl }_{ 2 }[/katex]

[katex]2N{ O }_{ 2 }\rightleftharpoons { N }_{ 2 }{ O }_{ 4 }[/katex]

[katex]{ N }_{ 2 }+3{ H }_{ 2 }\rightleftharpoons 2N{ H }_{ 3 }[/katex]

11 / 12

Formic acid contains _______ functional group.

−OH

−CHO

−COOH

−CO−

12 / 12

Identify the compound responsible for acid rain:

Sulphur dioxide

Chlorofluorocarbons

Vicinal dihalide

Glyoxal

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