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प्रश्न
Match the chemicals given in column I with the respective description given in column II.
| Column I | Column II |
| (p) CO2 gas released | (i) salt soluble in hot water but insoluble in cold water |
| (q) AgCl | (ii) salt insoluble in nitric acid but soluble in ammonia solution |
| (r) PbCl2 | (iii) metal carbonates react with HCl |
| (s) HCl | (iv) used for pickling of metals |
जोड़ियाँ मिलाइएँ
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उत्तर
| Column I | Column II |
| (p) CO2 gas released | (iii) metal carbonates react with HCl |
| (q) AgCl | (ii) salt insoluble in nitric acid but soluble in ammonia solution |
| (r) PbCl2 | (i) salt soluble in hot water but insoluble in cold water |
| (s) HCl | (iv) used for pickling of metals |
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