Match Column I with Column II Column I (Reactions) Column II (Effect on addition of water) Column I Column II P) A(aq) ⇌ 2B(aq) + H 2 O(l) i) Moles of ’A’ increases Q) 3A(aq) ⇌ 2B(aq) ii) Mole

Question

Match Column I with Column II Column I (Reactions) Column II (Effect on addition of water)

Column I	Column II
$P) A(aq) ⇌ 2B(aq) + H_{2} O(l)$	$i) Moles of ’A’ increases$
$Q) 3A(aq) ⇌ 2B(aq)$	$ii) Moles of ’B’ increases$
$R) 2A(aq) + H_{2} O(l) ⇌ B(aq)$	$iii) Molar concentration of ’A’ decreases$
$S) 2A(aq) ⇌ 3B(aq)$	$iv) Molar concentration of ’B’ decreases$

TestHub · Accepted Answer

Adding water dilutes every aqueous species, so each concentration falls at the instant of mixing; the equilibrium then shifts toward the side with more dissolved particles P: particles go 1 → 2, so the shift is forward; moles of B increase (ii); dilution lowers [A] (iii) and lowers [B] from its pre-addition value (iv) Q: particles go 3 → 2, so the shift is backward; moles of A increase (i); [A] falls on dilution (iii) and [B] falls (iv) R: particles go 2 → 1, so the shift is backward; moles of A increase (i); [A] decreases on dilution (iii) and [B] decreases (iv) S: particles go 2 → 3, so the shift is forward; moles of B increase (ii); [A] decreases (iii) and [B] decreases (iv) The correct mapping is option (d). ​

Chemistry - Chemical Equilibrium Question with Solution | TestHub

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