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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92

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

1 / 12

Raffinose produces ______ units of simple sugars when hydrolyzed.

3

2

5

4

2 / 12

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

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

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

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

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

3 / 12

Chemical formula of ammonium carbamate is:

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

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

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

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

4 / 12

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

Solution becomes Basic

Solution becomes unpredictable

Solution becomes acidic

Solution becomes Neutral

5 / 12

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

Aldehyde and Ketone

Phenol

Alcohol

Ketone

6 / 12

The substance which fight against diseases in living organisms are:

Enzymes

Carbohydrates

Lipids

Proteins

7 / 12

Which of the following is an aldehyde?

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

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

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

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

8 / 12

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

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

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

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

No units

9 / 12

Which of the following process is reduction in nature?

Roasting

Grinding

Smelting

Floatation

10 / 12

Permanent hardness of water can be removed by:

Boiling

Ion exchange method

Cooling

Clark’s method

11 / 12

Each DNA nucleotide consists of:

2 components

3 components

5 components

4 components

12 / 12

Which of the following is a Lewis acid?

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

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

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

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

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Past Paper 2019 (Overseas)
Practice MCQs Test

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71

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

1 / 12

Halite is an ore of:

Iron

Copper

Sodium

Zinc

2 / 12

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

Neutral

Unpredictable

Acidic

Basic

3 / 12

Which compound has two halogen atoms on adjacent carbon atoms?

Alkyle halide

Ester

Ether

Vicinal dihalide

4 / 12

Formic acid contains _______ functional group.

−COOH

−CO−

−OH

−CHO

5 / 12

The volumetric ratio between hydrogen and oxygen in water is:

2:01

3:01

1:08

2:02

6 / 12

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

Alkane

Ketone

Aldehyde

Alkene

7 / 12

The linkage which joins two amino acids is called:

Metallic Bond

Peptide Bond

Covalent Bond

Ionic Bond

8 / 12

The word vitamin was first used by:

Francis Crick

C. Eijkman

F.G. Hopkins

Casmir Funk

9 / 12

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

B

N

\({ BF }_{ 3 }\)

H

10 / 12

Identify the compound responsible for acid rain:

Glyoxal

Vicinal dihalide

Sulphur dioxide

Chlorofluorocarbons

11 / 12

Percentage of nitrogen in urea is:

35

21.2

46.6

80

12 / 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]

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