Free Chemistry10 Practice Test - IAS 

Question 1

Consider the following statements
(a) Baking soda is used in fire extinguishers
(b) Quick lime is used in the manufacture of glass
(c) Gypsum is used in the manufacture of cement
Which of the statements given above is/are correct?

A. (a) and (b)
B. (b) and (c)
C. (a) only
D. (a), (b) and (c)

SOLUTION

Solution : D

Option: (d)

Question 2

Which are the materials generally employed as solder in soldering operations in electronics?

A. Iron and tin
B. Lead and tin
C. Aluminium and lead
D. Aluminium and iron

SOLUTION

Solution : B

Option: (b)

Question 3

Salts of which of the following elements provide colors to fireworks?

A. Zinc and sulphur
B. Potassium and mercury
C. Strontium and barium
D. Chromium and nickel

SOLUTION

Solution : C

Option: (c)

Question 4

Which one of the following is produced during the formation of photochemical smog?

A. Hydrocarbons
B. Nitrogen Oxide
C. Ozone
D. Methane

SOLUTION

Solution : B

Option: (b)

Question 5

Match List I and List II and select the correct answer by using the codes given below the lists.
List I                                 List II
A. Crystallisation        1. Adsorption
B. Sublimation            2. Purification solids of solids
C. Distillation              3. Purification liquids of liquids
D. Chromatography   4. Camphor

A. 2   4   3   1
B. 1   2   3   4
C. 3   2   4   1
D. 4   3   2   1

SOLUTION

Solution : A

Option: (a)

Question 6

Assertion (A) : The main constituent of the liquified petroleum gas is methane.
Reason (R): Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.
Codes

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true R but R not the correct explanation of A
C. A is true but R is false
D. A is false but R is true

SOLUTION

Solution : D

Option: (d)

Question 7

Match List I (Fuel Gases) with List II (Major Constituents) and select the correct answer
List I                    List II
A. CNG             1. Carbon monoxide, Hydrogen
B.Coal gas       2. Butane, Propane
C. LPG              3. Methane, Ethane
D. Water gas  4. Hydrogen, Methane, Carbon monoxide

A. 2   1    3    4
B. 3   4   2   1
C. 2    4    3   1
D. 3    1    2   4

SOLUTION

Solution : B

Option: (b)

Question 8

Which of the following substances are found in the beach sands of many parts of Kerala?
(a) Limonite
(b) Zircon
(c) Sillimanite
(d) Tungsten
Select the correct answer using the codes given below. Codes

A. (a), (b), (c) and (d)
B. (a), (b) and (c) only
C. (c) and (d) only
D. (a) and (b) only

SOLUTION

Solution : B

Option: (b)

Question 9

Consider the following statements
(a) Liquified natural gas (LNG) is liquified under extremely cold temperatures and high pressure to facilitate storage or transportation in specially designed vessels.
(b) First LNG terminal in India was built in Hassan.
(c) Natural gas liquids (NGL) are separated from LPG and these include ethane, propane, butane and natural gasoline.
Which of the statements given above is/are correct?

A. (a) only
B. (a) and (c)
C. (b) and (c)
D. (a), (b) and (c)

SOLUTION

Solution : B

Option: (b)

Question 10

Match List I and List II and select the correct answer by using the codes given below the lists.
Alloy                         Composition
A. Bronze              1. Lead, antimony, tin
B. Brass                 2. Copper, zinc, nickel
C. German silver  3. Copper, zinc
D. Type metal      4. Copper, tin

A. 2   1   3   4
B. 2   1   3   4
C. 3   2   1   4
D. 4   3   2   1

SOLUTION

Solution : D

Option: (d)

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