NAT IIB Biological Science Chemistry Preparation Online Test for Pakistani Students

Online MCQ`s Test For Chapter 0 "NAT II Biological Science Chemistry"

Try The MCQ`s Test For Chapter 0 "NAT II Biological Science Chemistry"

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NAT II Biological Science Chemistry

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Question # 1

Oleum is

Castor oil A
Oil of vitriol B
Fuming of H₂SO₄ C
None of them D

Question # 2

For most of the chemical reactions the rate of reaction

Increase as the reaction proceeds A
Decrease as the reaction proceeds B
May increase or decrease during the reaction C
Remains constant as the reaction proceeds D

Question # 3

Which of the following reagent cannot be used for preparing alkyl chloride from alcohol?

HCl + anhyd. ZnCl₂ A
NaCl B
PCl₅ C
SOCl₂ D

Question # 4

2 g of oxygen contains number of atoms equal to that in

0.5 g of hydrogen A
4 g of sulphur B
7 g of nitrogen C
2.3 g of sodium D

Question # 5

If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place, the volume finally obtained would be approximately

800mL A
200mL B
10mL C
Zero D

Question # 6

Given below are some statements concerning formic acid, which of them is true?

It is a weaker acid than acetic A
it is a reducing agent B
When its calcium salt is heated, it forms a ketone C
It is an oxidizing agent D

Question # 7

Sulphure dioxide affects

Cell wall A
Plasmodesmata B
All membrane systems C
Nucleus D

Question # 8

The addition of HBr is easiest with

CH2 = CHCl A
CICH = CHCl B
CH3 - CH = CH2 C
(CH3)2 C = CH2 D

Question # 9

The rate of reaction between A and B increases by a factor of 100, and when the concentration with respect to A is increased 10 folds, the order of reaction w.r.t. A is

10 A
1 B
4 C
2 D

Question # 10

In cold countries ethylene glycol is added to water in radiators of cars during winter. It results in

Lowering in b.pt. A
Reducing viscity B
Reducing specific heat C
Lowering in freezing pt. D

Question # 11

Which has maximum protein content?

Ground nut A
Cow milk B
Egg C
Wheat D

Question # 12

Wholer prepared urea from

Ammonia A
NH₄CNO B
NH₃ C
Uric acid D

Question # 13

The total number of protons in 10 g of calcium carbonate is (N₀= 6.023 x 10²³)

1.5057 x 10²⁴ A
2.0478 x 10²⁴ B
3.0115 x 10²⁴ C
4.0956 x 10²⁴ D

Question # 14

Which one of the halogen acid is a liquid?

HF A
HCl B
HBr C
Hl D

Question # 15

Which of the following compounds has the lowest anion to cation size ratio?

LiF A
NaF B
Csl C
CsF D

Question # 16

Ozane is not

An allotrope A
A powerful oxidizing agent B
Paramegnetic C
a bent molecule D

Question # 17

The rotation of two carbon atoms joined by double bond would happened only if

P_ibond is broken A
Sigma bond is broken B
Both bonds are broken C
None of above D

Question # 18

The halide which is not hydrolysed is

SiCl₄ A
SiF₄ B
CCl₄ C
PbCl₄ D

Question # 19

ΔH_{neutralisation}is always

positive A
Negative B
Zero C
Positive or negative D

Question # 20

The rate at which a substance reacts depends on its

Atomic weight A
Equivalent weight B
Molecular weight C
Active mass D

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Online MCQ`s Test For Chapter 0 "NAT II Biological Science Chemistry"

NAT II Biological Science Chemistry

Oleum is

For most of the chemical reactions the rate of reaction

Which of the following reagent cannot be used for preparing alkyl chloride from alcohol?

2 g of oxygen contains number of atoms equal to that in

If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place, the volume finally obtained would be approximately

Given below are some statements concerning formic acid, which of them is true?

Sulphure dioxide affects

The addition of HBr is easiest with

The rate of reaction between A and B increases by a factor of 100, and when the concentration with respect to A is increased 10 folds, the order of reaction w.r.t. A is

In cold countries ethylene glycol is added to water in radiators of cars during winter. It results in

Which has maximum protein content?

Wholer prepared urea from

The total number of protons in 10 g of calcium carbonate is (N0= 6.023 x 1023)

Which one of the halogen acid is a liquid?

Which of the following compounds has the lowest anion to cation size ratio?

Ozane is not

The rotation of two carbon atoms joined by double bond would happened only if

The halide which is not hydrolysed is

ΔHneutralisationis always

The rate at which a substance reacts depends on its

Prepare Complete Set Wise Chapter 0 "NAT II Biological Science Chemistry" MCQs Online With Answers

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Set 3

Set 4

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The total number of protons in 10 g of calcium carbonate is (N₀= 6.023 x 10²³)

ΔH_{neutralisation}is always