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The mixture of concentrated \mathrm{HCl} and \mathrm{HNO_{3}}  made in 3 : 1 ratio contains

Option: 1

\mathrm{ClO_{2}}


Option: 2

\mathrm{NOCl}


Option: 3

\mathrm{NCl_{3}}


Option: 4

\mathrm{N_{2}O_{4}}


Answers (1)

best_answer

Aqua regia is obtained on mixing \mathrm{HCl} and \mathrm{HNO_3} in \mathrm{3:1} ratio which on long standing forms \mathrm{NOCl} as shown below:

\text {HNO}_{3}+\text {3HCl}\rightarrow \text {2H}_{2}\text {O}+ \text {Cl}_{2}+\text {NOCl}

Hence, the correct answer is Option (2)

Posted by

vishal kumar

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