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NEET levelSingle correct optionDifficulty 1 of 3sb085

Potassium nitrate on heating gives

A $K$ and $NO X_{2}$
B $KNO X_{2}$ and oxygen
C $K X_{2} O X_{2}$ and $NO X_{2}$
D $K X_{2} O$ , $NO X_{2}$ and oxygen

Answer: B

2 KNO X_{3} 2 KNO X_{2} + O X_{2}

. Nitrates of K, Rb and Cs (like Na) give the nitrite and oxygen.

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