Question

$Mg_{2}C_{3}$ has the following characteristics

• A. It is called magnesium allylide
• B. It contains $Mg^{2 +}$ and $C_{3}^{4 -}$ ions
• C. on hydrolysis, it gives propyne and propadiene
• D. All of the above

Answer 1

Answer: (D)

$Mg_{2}C_{3}$ is called magensium allylide. It contains $Mg^{+ 2}$ and $C_{3}^{4 -}$ ions. As magnesium is based then on reaction with water it gives $Mg\left(OH\right)_{2}$ and $C_{3}^{4 -}$ gives propyne or propadiene.