A piece of graphite reacts with aqueous nitric acid to yield gases A and B. A is a greenhouse gas and gas B has reddish brown fumes. Identify A and B.

C O_{2}

; B:

N O_{2}

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S O_{2}

; B:

N O

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C O_{2}

; B:

N O_{3}

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S O_{2}

; B:

N O_{2}

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Solution

The correct option is A A: $C O_{2}$ ; B: $N O_{2}$

Graphite is the allotrope of carbon.

So, in this reaction the nonmetal which reacts with nitric acid is Carbon.

The reaction when carbon reacts with nitric acid is: $C (s) + 4 H N O_{3} (a q) \to C O_{2} (g) + 2 H_{2} O (a q) + 4 N O_{2} (g)$

In the reaction $C O_{2}$ and $N O_{2}$ gases are formed.

$C O_{2}$ is a greenhouse gas and $N O_{2}$ is reddish brown in colour.

A is $C O_{2}$ gas and B is $N O_{2}$ gas.

Correct option: C.

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A piece of graphite reacts with aqueous nitric acid to yield gases A and B. A is a greenhouse gas and gas B has reddish brown fumes. Identify A and B.​

A piece of graphite reacts with aqueous nitric acid to yield gases A and B. A is a greenhouse gas and gas B has reddish brown fumes. Identify A and B.