Expalain th reaction of acetylene with :
Na in `NH_(3)`
Write the equation and name of the products.

Explanation

With Na in `NH _(3):` Acetylene reacts with Na in liquid `NH_(3)` to give monosodium acetylide and disodium acetylide.
`H - C -=C - H + Na to underset("monosodium acetylide") (H - C -=C - Na + (1)/2 H _(2))`
`H - C -= C - H + 2 Na to underset("di sodium acetylide") ( Na - C - na + H _(2))`
b) Chromic acid : Acetylene is oxidised to acetic to acetic acid by chromic acid.
`HC -= CH + (O) + H_(2)O overset("Chromic acid") to underset("acetic acid") ( CH _(3) COOH)`