Question

ethyne react with hydrogen in presence of ni​

Answer 1

Answer: ETHENE IS THE PRODUCT.

Explanation:

Ethyne is converted into ethene, when a molecule of hydrogen is added to it in the presence of a catalyst Ni or Pd.

The reaction stops here, i.e. the obtained alkene does not react with hydrogen again because only a (one) molecule of hydrogen is taken.

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Answer 2

Answer:

reacts with hydrogen in presence of nickel at a temperature of about 150 °\° C