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Q.

(A) : Aqueous solution of Na2CO3 is acidic in nature
(R) : Na+ ion undergoes hydrolysis to produce NaOH and H+ ions

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a

Both A and R are true, and R is correct explanation of A

b

Both A and R are true, and R is not the correct explanation of A

c

A is true but R is false

d

Both A and R are false

answer is D.

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Detailed Solution

Na2CO3 → 2Na+ + CO3-2
CO3-2 + 2H2O → H2CO3 + 2OH-
2Na+ + 2OH- → 2NaOH
→ Aqueous solution of Na2CO3 is basic in nature, since it undergoes anionic gydrolysis
→ The cations of strong base and the anions of strong acid in the salt can't undergoes hydrolysis

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