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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6

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

1 / 12

The substance which fight against diseases in living organisms are:

Carbohydrates

Proteins

Enzymes

Lipids

2 / 12

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

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

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

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

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

3 / 12

Which of the following is an aldehyde?

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

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

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

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

4 / 12

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

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

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

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

No units

5 / 12

Chemical formula of ammonium carbamate is:

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

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

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

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

6 / 12

Which of the following process is reduction in nature?

Smelting

Floatation

Roasting

Grinding

7 / 12

Each DNA nucleotide consists of:

2 components

3 components

4 components

5 components

8 / 12

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

Alcohol

Phenol

Aldehyde and Ketone

Ketone

9 / 12

Permanent hardness of water can be removed by:

Boiling

Cooling

Ion exchange method

Clark’s method

10 / 12

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

Solution becomes Basic

Solution becomes acidic

Solution becomes Neutral

Solution becomes unpredictable

11 / 12

Which of the following is a Lewis acid?

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

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

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

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

12 / 12

Raffinose produces ______ units of simple sugars when hydrolyzed.

3

5

4

2

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Past Paper 2019 (Overseas)
Practice MCQs Test

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9

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

1 / 12

The word vitamin was first used by:

Francis Crick

C. Eijkman

Casmir Funk

F.G. Hopkins

2 / 12

For which reaction Kc has NO units?

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

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

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

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

3 / 12

Halite is an ore of:

Zinc

Iron

Copper

Sodium

4 / 12

Percentage of nitrogen in urea is:

35

46.6

80

21.2

5 / 12

Which compound has two halogen atoms on adjacent carbon atoms?

Vicinal dihalide

Ester

Alkyle halide

Ether

6 / 12

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

Unpredictable

Acidic

Neutral

Basic

7 / 12

Identify the compound responsible for acid rain:

Chlorofluorocarbons

Sulphur dioxide

Glyoxal

Vicinal dihalide

8 / 12

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

B

\({ BF }_{ 3 }\)

N

H

9 / 12

The linkage which joins two amino acids is called:

Covalent Bond

Ionic Bond

Metallic Bond

Peptide Bond

10 / 12

The volumetric ratio between hydrogen and oxygen in water is:

2:01

1:08

2:02

3:01

11 / 12

Formic acid contains _______ functional group.

−COOH

−CHO

−OH

−CO−

12 / 12

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

Alkene

Alkane

Ketone

Aldehyde

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