Question

Acidic hydrogen is present in : (a) ethyne (b) ethene(c) benzene (d) ethane

Answer 1

Answer:  (a) ethyne

Explanation:

Ethyne is an alkyne with molecular formula $C_2H_2$ which contains $sp$ hybridized carbon.

Ethene is an alkene with molecular formula $C_2H_4$ which contains $sp^2$ hybridized carbon.

Benzene is a cyclic alkene with molecular formula $C_6H_6$ which contains $sp^2$ hybridized carbon.

Ethane is an alkane with molecular formula $C_2H_6$ which contains $sp^3$ hybridized carbon.

As s character is highest in sp hybridized carbon , the electronegativity of carbon is highest as s orbital lies near to nucleus and thus withdraws electrons from hydrogen and easily releases $H^+$ ions and thus act as acid.

Thus acidic hydrogen is present in ethyne.

Answer 2

Answer:

i dont no bcoz i dont like chemistry subjet so thats why i dont know