Match the items in Column I with its main use listed in Column II :Column I Column II (A) Silica gel (i) Transistor (B) Silicon (ii) Ion-exchanger (C) Silicone (iii) Drying agent (D) Silicate (iv) Sealant
| Column I | Column II |
| (A) Silica gel | (i) Transistor |
| (B) Silicon | (ii) Ion-exchanger |
| (C) Silicone | (iii) Drying agent |
| (D) Silicate | (iv) Sealant |
Show Hint
- (A)-(iii), (B)-(i), (C)-(iv), (D)-(ii)
- (A)-(iv), (B)-(i), (C)-(ii), (D)-(iii)
- (A)-(ii), (B)-(iv), (C)-(i), (D)-(iii)
- (A)-(ii), (B)-(i), (C)-(iv), (D)-(iii)
The Correct Option is A
Solution and Explanation
(B) Ultra-pure silicon is a semiconductor used in transistors and chips: (i).
(C) Silicones (organosilicon polymers) are used as sealants, greases and water-proofing agents: (iv).
(D) Silicates such as zeolites (aluminosilicates) act as ion exchangers: (ii).
This gives (A)-(iii), (B)-(i), (C)-(iv), (D)-(ii).
Answer: (1) (A)-(iii), (B)-(i), (C)-(iv), (D)-(ii)
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