The ammonia \( \left(\mathrm{NH}_{3}\right) \) released on quantitative reaction of \( 0.6 \math...

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The ammonia \( \left(\mathrm{NH}_{3}\right) \) released on quantitative reaction of \( 0.6 \mathrm{~g} \) urea \( \left(\mathrm{NH}_{2} \mathrm{CONH}_{2}\right) \) with sodium hydroxide \( (\mathrm{NaOH}) \) can be neutralized by:
(1) \( 200 \mathrm{ml} \) of \( 0.4 \mathrm{~N} \mathrm{HCl} \)
(2) \( 200 \mathrm{ml} \) of \( 0.2 \mathrm{NHCl} \)
(3) \( 100 \mathrm{ml} \) of \( 0.1 \mathrm{~N} \mathrm{HCl} \)
(4) \( 100 \mathrm{ml} \) of \( 0.2 \mathrm{NHCl} \)
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