Question

Which of the following compounds on hydrolysis gives propyne ?

• A. CaC2
• B. Mg2C3
• C. Al4C3
• D. Cu2Cl2

Answer 1

Answer: (B)

Mg2C3

Answer 2

2Mg+2 [º C – C3–] $\xrightarrow { \mathrm { H } _ { 3 } \mathrm { O } ^ { + } }$ Mg [OH]2 + CH º

C – CH3 [Propyne]