Question

$CaCO_3$ on beating gives a wbhite solud (A) and a gas (B), (A) on deating eith carbon gives a sollid (C) and a gas (D), (C) on hudroglysis glves a gas (E) and a solide (F) Idebntly (A), (B), (C), (D) , (E) and (F) .

Answer 1

$CaCO(3(*)) overset(Delta)(rarr)underset((A))(CaO((*)))+underset((B))(CO(2)) uarr((g))$
$CaO + 3 C rarr underset ((C )) (CaC2) + underset ((B)) (CO)$
$underset((C))(CaC(2)) +2H(2)O rar runderset((F))(Ca(OH)(2))+ underset((E))(C(2)H(2))$
Hence (A) is calucium osiede , $CaO$
(B) is carbon disoxede , $CO_2$ .
(C) is calcium carbide, $CaC_2$
(D) is carbnon monoxide, $CO$.
(E) is acetylene $C_2 H_2$ .
(F) is calcium hydroxide , $Ca(OH)_2$.