Give the products formed aon hydrolysis of (a) `Al_4 C-3` and (b) `CaNCN`.

Explanation

`Al_(4)C_(3)+12H_(2)O rarrunderset(("whiter ppt."))underset("hydroxide")(4Al(OH)_(3)darr)+underset("Methane")(3CH_(4)uarr)`
Alumninim carbonde, `Al_4 C_3` on hydrolysis give a white prectpitate of `A l (OH)_3` alongwith methane `(CH_4)` gas ,
b.`CaNCN = 3 H_2 + 3 H_2 O rarr underset ((white ppt.)) underset (carbnonate ) underset (Calcium) (CaCO_darr) + underset (Ammonia) (2NH_3uarr)`
Calcium cyanamide `(CaNCN)` on hydrolsis gives a whicte pecipitte of calcium caronate `(CaCO_3)` alongwith ammonita `(NH_3)` gas .