Match the items under column –I with items under column – II (A) (P)(B)(Q)(C)(R)(D)(S)
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a
A(p), B(q), C(p, r), D(q, s)
b
A(p,s), B(q,r), C(q, p), D(q, s)
c
A(p), B(q), C(r), D(s)
d
A(s), B(r), C(q), D(p)
answer is A.
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Detailed Solution
(A) Acid has pH < 7 (B) Base has pH > 7(C) Acidic buffer is a mixture of weak acid + salt of this acid with strong base(D) Basic buffer is a mixture of weak base + salt of this base with strong acid