acids, bases, salts and metals - Category wise Question and Answer Practice Test with Solutions

Question : 21 [UPPCS (Mains) 2015]

Which one of the following is coated on the photographic plate?

a) Silver bromide

b) Silver chloride

c) Silver oxide

d) Silver iodide

Question : 22 [RAS/RTS (Pre) 1992]

Which of the following acid do not contain Oxygen?

a) Sulphuric Acid

b) Hydrochloric Acid

c) Nitric Acid

d) All of the above

Question : 23 [NDA]

Which of the following statements regarding oxidation and reduction are correct?

1. In oxidation, loss of electron takes place whereas in reduction, gain of electron takes place.
2. In oxidation, gain of electron takes place whereas in reduction, loss of electron takes place.
3. Oxidizing agent decreases the oxidation number but reducing agent increases the oxidation number.
4. Oxidizing agent increases the oxidation number but reducing agent reduces the oxidation number.

a) 2 and 3

b) 1 and 3

c) 2 and 4

d) 1 and 4

Question : 24 [IAS Prelim]

Match List I with List II and select the correct answer using the codes given below the lists:

a) A-3; B-4; C-1; D-2

b) A-3; B-4; C-2; D-1

c) A-4; B-3; C-2; D-1

d) A-4; B-3; C-1; D-2

Question : 25

What is anode mud ?

a) Impurities collected at anode in electrolysis during purification of metals

b) Fan of anode

c) Metal of anode

d) All of these