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| 1. |
Which of the following relations can give hydrogen gas 1. Zinc +conc. H2SO4 2. C4 + dil. H2SO4 3. Mn + dil. HNO3 4. Pb+ dil. HNO3 |
| Answer» Which of the following relations can give hydrogen gas 1. Zinc +conc. H2SO4 2. C4 + dil. H2SO4 3. Mn + dil. HNO3 4. Pb+ dil. HNO3 | |