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An Intiative by Sri Chaitanya
a
I-C, II-A, III-D, IV-B
b
I-A, II-C, III-B, IV-D
c
I-D, II-B, III-C, IV-A
d
I-A, II-D, III-C, IV-B
answer is A.
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Detailed Solution
I) Liquid helium is used as a cryogenic liquid due to low boiling point.II) PH3 undergoes oxidation to form white smoke of P4O10.III) Nitric acid removes basic impurities from the surface of stainless steel.IV) ClO2 is used as bleaching agent for paper pulp and in water treatment.