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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
$N{O_2}$ is a mixed oxide is proved by the first $H_2O$ than with $NaOH$, it forms
  • A
    Nitrites salt
  • B
    Nitrates salt
  • ✓
    Mixture of nitrate and nitrite
  • D
    Ammonia
✓

Answer

Correct option: C.
Mixture of nitrate and nitrite
c
(c) $2N{O_2} + {H_2}O$ ⇌ $HN{O_2} + HN{O_3}$

When dissolved in water, gives a mixture of nitrous acid and nitric acid.

${N_2}{O_4} + {H_2}O\, \to \,HN{O_2} + HN{O_3}$

$HN{O_3} + HN{O_2} + 2NaOH\, \to $ $NaN{O_2} + NaN{O_3} + 2{H_2}O$

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