Identify $(C)$ :

N_{2}

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H_{2}

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O_{2}

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N_{2} O

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Solution

The correct option is A $N_{2}$
A colorless water soluble crystalline solid $(A)$ on heating gives $O_{2}$ and gives a water soluble crystalline solid $(B)$ .
$2 K N O_{3} (s) \to 2 K N O_{2} (s) + O_{2} (g)$
So, $A$ is $K N O_{3}$ (crystalline solid) and $B$ is $K N O_{2}$ (water soluble crystalline solid). Both $A$ and $B$ impart violet coloration to the Bunsen flame.
When $B$ is heated with $N H_{4} C l$ , inactive gas $(C)$ is obtained but when $A$ is heated with $N H_{4} C l$ , a gas $(D)$ which supports combustion is formed.
$N H_{4} C l + K N O_{2} \to N_{2} + K C l + 2 H_{2} O$
So the gas $C$ is $N_{2}$ .
Hence option $B$ is correct.

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Similar questions

The possible mechanism for the reaction:

$2 H_{2 +} 2 N O \to N_{2} + 2 H_{2} O$ is

$(i) 2 N O ⇌ N_{2} O_{2} (i i) N_{2} O_{2} + H_{2} \to N_{2} O + H_{2} O (slow) (i i i) N_{2} O + H_{2} \to N_{2} H_{2} O (fast)$ What is (i) the rate law for the reaction (ii) the order of the reaction?

Q. At

S T P

the order of mean square velocity of molecules of

H_{2}, N_{2}, O_{2}

and

H B r

is-

Q. Balance the following equations and write shown the stoichiometric proportions.
a)

C + O_{2} \to C O_{2}

H_{2} + C l_{2} \to H C l

N_{2} + H_{2} \to N H_{3}

F e + O_{2} \to F e_{2} O_{3}

Balance the following equations :

(a) $N_{2} + H_{2} \to N H_{3}$

(b) $H_{2} + O_{2} \to H_{2} O$

(d) $C O + O_{2} \to C O_{2}$

(e) $Z n + H C I \to Z n C l_{2} + H_{2}$

Q. Gases

H_{2} H e O_{2} N_{2}

Critical temperature(K) 33.2 5.3 154.3 126

From the above data what whould be the order of liquefaction of these gases?
Start writing the order from the gas liquefying first.

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Identify (C) :

Identify $(C)$ :