Question

How many hydrogen atoms are there in a molecule of acetylene?
1. 2
2. 4
3. 1
4. 3

Answer 1

Correct Answer - Option 1 : 2

The correct answer is 2.

• Acetylene is the chemical compound with the chemical formula C₂H₂.
• There are 2 hydrogen atoms present in an acetylene molecule.
• Acetylene is the first stable member of the alkyne series.
• Acetylene is also called ethyne.
• Acetylene is unsaturated in nature due to the presence of a triple bond between two carbon atoms.
• Acetylene was discovered by Edmund Davy in 1836.
• It is widely used as a fuel and a chemical building block.
• Acetylene is used for arc welding purposes in the form of oxyacetylene flame obtained by mixing acetylene with oxygen gas.