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Nitrous Oxide

The yellow co...

Question

The yellow colour of $H N O_{3}$ is due to the dissolution of nitrogen dioxide ( $N O_{2}$ ).

A

True

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B

False

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Solution

The correct option is A True
Nitric acid decomposes slowly to nitrogen dioxide which confers the characteristic yellow color of most samples of this acid.
$4 {H N O}_{3} \to 4 {N O}_{2} + 2 H_{2} O + O_{2}$

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Similar questions

Q. The yellow colour of

H N O_{3}

is due to the dissolution of _________.

H N O_{3}

is yellow coloured liquid due to :

Q. Assertion :On cooling, the brown colour of nitrogen dioxide disappears. Reason: On cooling,

{N O}_{2}

undergoes dimerisation resulting in the pairing of odd electrons of

{N O}_{2}

.

Q. Thermal decomposition of

H N O_{3}

releases yellow-brown coloured fumes due to the formation of gas.

Q. Concentrated

H N O_{3},

upon long standing, turns yellow-brown due to the formation of
(IIT-JEE, 2012)

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