Question

1.
named hydrogen as inflammable gas.
2. Copper impurity present in granulated zinc acts as
.... while preparing hydrogen
gas in the laboratory.
3. Arrangement of metals in series in the decreasing order of their reactivity is called
4. When hydrogen reacts with chlorine in diffused sunlight
is formed as product.
5. If both exidation and reduction takes place simultaneously, the reaction is called
och statement.​

Answer 1

Answer:

2. catalyst

3. reactivity series of metals

4. hydrogen chloride

5. redox reaction