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1156: An aqueous solution of copper sulphate is acidic in nature because the salt undergoes

(a) dialysis

(b) electrolysis

(c) hydrolysis

(d) photolysis
1157: Which one of the the following usages was a post-Vedic development ?

(a) Dharma -- Artha -- Kama -- Moksha

(b) Brahmana -- Kshatriya -- Vaishya -- Shudra

(c) Brahmacharya -- Grihastashrama -- Vanaprastha -- Sanyasa

(d) Indra -- Surya -- Rudra -- Marut
1158: Hybridoma technology is a new biotechnological approach for commercial production of

(a) monoclonal antibodies
(b) interferon
(c) antibodies
(d) alcohol
1159: According to the latest census figures sex ratio in India is

(a) declining

(b) stable

(c) increasing

(d) fluctuating
1160: Match List I (Naturally occurring substances) with List II (Elements) and select the correct answer using the codes given below the Lists:

List I
I. Diamond
II. Marble
III. Sand
IV. Ruby

List II
(A) Calcium
(B) Silicon
(C) Aluminium
(D) Carbon

Codes:
(a) I-C, II-A, III-B, IV-D
(b) I-D, II-B, III-A, IV-C
(c) I-B, II-A, III-C, IV-D
(d) I-D, II-A, III-B, IV-C
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