Chemistry Mock Test: Online GK Test

Chemistry Mock Test

Question type: Multiple Choice Question (MCQ)
Total no. of question: 20
Time duration: 10 minutes
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1 / 20

The maximum number of electrons that can be accommodated in a shell depends on the formula

A. 2n2

B. n2

C. 3n2

D. 4n

2 / 20

Which element has similar properties to Beryllium?

A. Calcium

B. Manganese

C. Both A & B

D. Helium

3 / 20

Which acid is produced when milk gets sour?

A. Acetic acid

B. Lactic acid

C. Butyric acid

D. Tartaric acid

4 / 20

Which is the gas used for making vegetables and vanaspathi from vegetable oils?

A. Argon

B. Hydrogen

C. Helium

D. Nitrogen

5 / 20

Curdling of milk is an example of

A. Inversion

B. Coagulation

C. Denaturation

D. Hydrolysis

6 / 20

The purest form of iron is

A. nickel steel

B. steel

C. wrought iron

D. pig iron

7 / 20

Sodium carbonate crystal lose water molecules this property is called

A. hygroscopy

B. efflorescence

C. deliquescence

D. None of these

8 / 20

How many electrons are there in Na+

A. 10

B. 11

C. 1

D. 12

9 / 20

The formula of lithium nitride is:

A. LiN

B. Li2N

C. Li3N

D. Li3N2

10 / 20

Hydrogen bomb is based on the principle of

A. nuclear fusion

B. nuclear fission

C. artificial radioactivity

D. natural radioactivity

11 / 20

Orlon is a polymer of

A. Acrylonitrile

B. Dacron

C. Polyamide Nylon

D. None of the above

12 / 20

Positive ions are formed from neutral atoms by loss of

A. nuclear charge

B. neutrons

C. electrons

D. protons

13 / 20

Which of the following carbon compounds is used as a fire- extinguisher?

A. Methylene chloride

B. Carbon tetrachloride

C. Carbon disulphide

D. Chloroform

14 / 20

Constantan is an alloy of copper and _________.

A. nickel

B. iron

C. aluminum

D. tin

15 / 20

In known elements, the maximum number is of

A. Metalloids

B. Metals

C. Non Metals

D. None of these

16 / 20

An element which is preserved under water is

A. red phosphorus

B. white phosphorus

C. sodium

D. sulphur

17 / 20

_________ on mixing with water changes to gypsum.

A. Calcium Sulphate Hemihydrate

B. Calcium Phosphate Hemihydrate

C. Calcium Phosphate

D. Sodium Hydrogen Carbonate

18 / 20

Which of the following acids is present in ant bites?

A. Formic acid

B. Nitric acid

C. Malic acid

D. Perchloric acid

19 / 20

Which of the following is not a property of water?

A. Low specific heat

B. Low heat of vaporisation

C. Low density

D. All of the above

20 / 20

Which one of the following substances does not have a melting point

A. glass

B. Mercury

C. bromine

D. sodium chloride

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