4501: Helium is used for respiration in deep water instead of nitrogen because:
(a) It is heavier than nitrogen
(b) It is lighter than nitrogen
(c) It mixes less in blood than nitrogen
(d) It helps oxygen burn more quickly
4502: Prohibition of discrimination on grounds of religion, etc. (Article 15 of the Constitution of India) is a Fundamental Right classifiable under
(a) the Right to Freedom of Religion
(b) the Right against Exploitation
(c) the Cultural and Educational Rights
(d) the Right to Equality
4503: Match List I with List II and select the correct answer using the codes given below the Lists :
List I--------------List II
(Resorts)------- (States)
I. Chakrata-------- (A) Assam
II. Haflong---------- (B) West Bengal
III. Kalimpong--------- (C) Uttar Pradesh
IV. Kufri----------(D) Himachal Pradesh
Codes:
(a) I-A, II-C, III-B, IV-D
(b) I-C, II-A, III-D, IV-B
(c) I-C, II-A, III-B, IV-D
(d) I-A, II-C, III-D, IV-B
4504: Consider the following statements :
Glass can be etched or scratched by
I. diamond.
II. hydrofluoric acid.
III. aquaregia.
IV. cone, sulphuric acid.
Which of these statements are correct ?
(a) I and IV
(b) II and III
(c) I and II
(d) II and IV
4505: Assertion (A):
The sponsor and the most prominent figure of the Chisti order of Sufis in India is Khwaja Moinuddin Chisti.
Reason (R):
The Chisti order takes its name from a village Chisti in Ajmer.
In the context of the above two statements, which one of the following is correct ?
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true