Compare the roles of hydrogen and halogens in these reactions. Match the words i

Question

Compare the roles of hydrogen and halogens in these reactions. Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Holp redox hydrogenation oxidatiorn lose(s) gain(s) onergy oxidized reduced reduction The reactions of the alkali metals with hydrogen and with a halogen are reactions In both classes of reaction, the alkali metal electrons and is Both hydrogen and the halogen electrons and are l [ ] Hydrogen or the halogen act as agents in these reactions

Explanation / Answer

1.the reaction with alkali metal with hydrogen and with halogens are redox reaction

Reason : sodium lose electron and hydrogen and halogen gains electron

2. In both classes of reaction alkali metal lose electron and is oxidized

3. both hydrogen and the halogen gains electron and are reduced

4. Hydrogen or halogen act as reduction agent

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