MHT CET · Chemistry · Ionic Equilibrium

Which of the following salts will not undergo hydrolysis?

A \(\mathrm{NH}_{4} \mathrm{Cl}\)
B KCN
C \(\mathrm{KNO}_{3}\)
D \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)

Verified Solution

Answer & Solution

Correct Answer

(C) \(\mathrm{KNO}_{3}\)

Step-by-step Solution

Detailed explanation

Potassium nitrate \(\left(\mathrm{KNO}_{3}\right)\) is a salt of strong base and strong acid and hence, will not undergo
hydrolysis.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Match the embryonal cell in column I with -their origin given in column II and choose the correct options given below.

	Column I		Column II
a.	Suspensor initial	i.	Large basal cell of the 2-celled pro-embryo
b.	Embryonal initial	ii.	First cell of the suspensor towards micropylar end.
c.	Haustorium	iii.	Lower most cell of the suspensor
d.	Hypophysis	iv.	Small terminal cell 2-celled of pro-embryo

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