21: Which one among the following is called philosopher's wool?
(a) Zinc oxide
(b) Zinc chloride
(c) Zinc nitrate
(d) Zinc bromide
22: Consider the following statements :
1. The Chairman and the Deputy Chairman of the Rajya Sabha are not the members of that House.
2. While the nominated members of the two Houses of the Parliament have no voting right in the presidential election, they have the right to vote in the election of the Vice President
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
23: Match List-I with List-II and select the correct answer using the code given below the lists :
List I (Valley)
A. Markha Valley
B. Dzukou Valley
C. Sangla Valley
D. Yumthang Valley
List-II (State)
1. Sikkim
2. Himachal Pradesh
3. Jammu and Kashmir
4. Nagaland
(A) 3 4 2 1
(B) 2 4 3 1
(C) 3 1 2 4
(D) 2 1 3 4
24: Which one of the following plants can fix nitrogen from air?
(a) Rice
(b) Wheat
(c) Pea
(d) Maize
25: In 1921 the Session of the Indian National Congress was held when its President was in prison and with some other leader acting as President. Who was the Congress President in prison?
(a) Mahatma Gandhi
(b) Mohammad Ali
(c) C. R. Das
(d) Abul Kalam Azad