JEE PYQ: Chemical Equilibrium Question 18
Question 18 - 2020 (07 Jan Shift 2)
The ammonia ($\text{NH}_3$) released on quantitative reaction of 0.6 g urea ($\text{NH}_2\text{CONH}_2$) with sodium hydroxide (NaOH) can be neutralized by:
(1) 200 mL of 0.4 N HCl
(2) 200 mL of 0.2 N HCl
(3) 100 mL of 0.2 N HCl
(4) 100 mL of 0.1 N HCl
Show Answer
Answer: (3) 100 mL of 0.2 N HCl
Solution
(0). (6 g urea = 0.02 mol NH$_3$. Needs 0.02 mol HCl = 100 mL of 0.2 N HCl.)