When conc. $H C l$ is mixed with conc. $H N O_{3}$ , the species produced are:

N O_{2}, {C l}_{2}, H_{2} O

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N O, {C l}_{2}, H_{2} O

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N O_{2}, H O C l

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N O C l, {C l}_{2}, H_{2} O

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Solution

The correct option is D $N O C l, {C l}_{2}, H_{2} O$
The best aqua regia is made from a 3 : 1 molar ratio of $H C l$ to $H N O_{3}$ . This is because the intended reaction is as follows:

$H N O_{3} + H C l ⟶ N O C l + 2 H_{2} O + {C l}_{2}$

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Similar questions

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H g (N O_{3})_{2} \to H g + N O_{2} ↑ + O_{2} ↑

P b_{3} O_{4} + H C l \to P b C l_{2} + C l_{2} ↑ + H_{2} O

Which pair gives Cl₂at room temperature ?

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