SATHEE: Some Basic Concepts Of Chemistry Question 254

Some Basic Concepts Of Chemistry Question 254

Question: How many grams of caustic potash required to completely neutralise 12.6 gm $H N O_{3}$

Options:

A) 22.4 KOH

B) 1.01 KOH

C) 6.02 KOH

D) 11.2 KOH

Show Answer

Answer:

Correct Answer: D

Solution:

$H N O_{3} + K O H \to K N O_{3} + H_{2} O$

$\frac{12.6}{63} =$ 0.2 mole; $H N O_{3} \equiv K O H$

0.2 mole $\equiv$ 0.2 mole $0.2 \times 56 = 11.2 g m$ .

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