Match Column I with Column II:

Column I (Reaction):
(A) C(s) + 1/2 (g) → (g)
(B) (g) + 1/2 (g) → (g)
(C) (aq) + (aq) → (aq) + (l)
(D) (g) + 1/2 (g) → (l)

Column II (Process):

Question

Match Column I with Column II:

Column I (Reaction):
(A) C(s) + 1/2 $O_2$(g) → $CO$(g)
(B) $CO$(g) + 1/2 $O_2$(g) → $CO_2$(g)
(C) $NaOH$(aq) + $HCl$(aq) → $NaCl$(aq) + $H_2O$(l)
(D) $H_2$(g) + 1/2 $O_2$(g) → $H_2O$(l)

Column II (Process):
(P) Combustion
(Q) Neutralization
(R) Process of formation
(S) Used in fuel cell

Prashant Kotian · Accepted Answer

Correct answer: A→R; B→P; C→Q; D→P,S. (A) represents standard formation of (g) from its elements (R). (B) is the combustion of (g) (P). (C) is standard strong acid-strong base neutralization (Q). (D) represents both hydrogen combustion (P) and is the core chemical process in fuel cells (S).

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