`CaCO_(3)(g) overset(Delta)rarr A (s)+B(g)`,
`A(s) +D(s) rarr E(s)+F(g)`
`H(s)+H_(2)O` (steam) `rarr CaCO_(3)+X (g)`
In the above reactins, 'F' is:

CaCO_(3)(g) overset(Delta)rarr A (s)+B(g) , A(s) +D(s) rarr E(s)+F(g) H(s)+H_(2)O (steam) rarr CaCO_(3)+X (g) In the above reactions, shape of molecule X is:

CaCO_(3)(g) overset(Delta)rarr A (s)+B(g) , A(s) +D(s) rarr E(s)+F(g) H(s)+H_(2)O (steam) rarr CaCO_(3)+X (g) H+D mixture is called

Identify (A) to (G) in the following scheme and name the process. CaCO_(3) overset(Delta) to (A) + (B) gas , (A) + H_(2)O rarr (C ) (C )+B rarr CaCO_(3) + H_(2)O (D) +(C ) overset(Delta) to (E ) gas (E ) + H_(2)O + (B) rarr (F) , NaCI + (F) rarr (G) + (D) (G) overset(Delta) to Na_(3)CO_(3) + H_(2)O + (B)

CaCO_(3(a))overset(Delta)(rarr)A_((s))+B_((g)) , A_((s))+"carbon"overset(Delta )(rarr)C_((s))+D_((s)) . The compounds A and C.

Which of the following are non-metal displacement reactions ? (A) Ca(S) + 2H_(2)O(l) rarr Ca(OH)_(2)(aq) + H_(2)(g) (B) V_(2)O_(5)(S) + 5Ca(S) overset(Delta)rarr 2V(S) + 5CaO(S) (C ) 2Fe(S) + 3H_(2)O(l) overset(Delta)rarr Fe_(2)O_(3)(S) + 3H_(2)(g) (D) Cr_(2)O_(3)(S) + 2Al(S) overset(Delta)rarr Al_(2)O_(3)(S) + 2Cr(S)

Complete the following reaction. (i) CaCO_(3) overset(Delta)rarr [A]+underset("gas")([B]) (ii) [A]+H_(2)O rarr [C] (iii) [C]+[B] rarr CaCO_(3)+H_(2)O (iv) NH_(4)Cl+[C] overset(Delta)rarr underset("gas")([E])+CaCl_(2)+H_(2)O (v) E+H_(2)O+[B]rarr[F] (vi) NaCl+[F]rarr [G]+NH_(4)Cl (vii) [G] overset(Delta)rarr Na_(2)CO_(3)+H_(2)O+[B]

Complete the following reaction. (i) CaCO_(3) overset(Delta)rarr [A]+underset("gas")([B]) (ii) [A]+H_(2)O rarr [C] (iii) [C]+[B] rarr CaCO_(3)+H_(2)O (iv) NH_(4)Cl+[C] overset(Delta)rarr underset("gas")([E])+CaCl_(2)+H_(2)O (v) E+H_(2)O+[B]rarr[F] (vi) NaCl+[F]rarr [G]+NH_(4)Cl (vii) [G] overset(Delta)rarr Na_(2)CO_(3)+H_(2)O+[B]

Na_((s))+air("excess")overset(Delta)rarrA A+H_(2)SO_(4)("cold,dilute")toB+H_(2)O_(2) CaCO_(3)(s)overset(Delta)rarrX_((s))+D_((g)), A+D_((g))toE+F_((g)) Bunderset((ii)CaCO_(3),Delta,(iii)"water")overset((i)COKe,Delta)rarr Filtrate (E), X(s)+H_(2)OtoG E+G overset("gentyheted")rarrH_((aq))overset(P_(4)"white")rarrI+J_((g) Amswer the following questions based on the above sequence of reactions. Gases D, F and J are respectively

Na_((s))+air("excess")overset(Delta)rarrA A+H_(2)SO_(4)("cold,dilute")toB+H_(2)O_(2) CaCO_(3)(s)overset(Delta)rarrX_((s))+D_((g)), A+D_((g))toE+F_((g)) Bunderset((ii)CaCO_(3),Delta,(iii)"water")overset((i)COKe,Delta)rarr Filtrate (E), X(s)+H_(2)OtoG E+G overset("gentyheted")rarrH_((aq))overset(P_(4)"white")rarrI+J_((g) Compounds E, H and I are respectively