+1 vote
in Chemistry by kratos

Match the column I & II using the code given below the column.

| Column I | Column II |
| A. Gas mask | 1. demineralise water |
| B. Permutit | 2. petroleum refining |
| C. Ion exchange resins | 3. softening of hard water |
| D. Silica gel | 4. Charcoal gas |

| | A | B | C | D |
| (a) | 4 | 3 | 1 | 2 |
| (b) | 3 | 4 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 2 | 1 | 4 | 3 |

1 Answer

+1 vote
by kratos
 
Best answer

(a) 4 3 1 2

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