Match List I with List II and select the correct answer using the codes given below the Lists: List I I. German Silver II. Solder III. Bleaching Powder IV. Hypo List II
- ATin
- BNickel
- CSodium
- DChlorine Codes:Correct
Explanation
To find the correct match, we examine the primary chemical constituents of each substance in List I.
I. German Silver is an alloy that contains Copper, Zinc, and Nickel. It does not actually contain silver. Therefore, it matches with B Nickel.
II. Solder is an alloy primarily composed of Lead and Tin. Therefore, it matches with A Tin.
III. Bleaching Powder is chemically known as Calcium Hypochlorite. Its active ingredient for bleaching and disinfection is Chlorine. Therefore, it matches with D Chlorine.
IV. Hypo is the common name for Sodium Thiosulfate, which is widely used in photography. Therefore, it matches with C Sodium.
Matching these results gives the sequence I-B, II-A, III-D, and IV-C. Following the logic of the matching pairs provided in the question format, option D represents the correct set of associations.
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