Which of the following salts on heating gives a mixture of two gases?

Question

Which of the following salts on heating gives a mixture of two gases? (A) Ba(NO3)2 (B) NaNO3 (C) KNO3 (D) RbNO3

Tardigrade Admin · Accepted Answer

Ba(NO3)2 xrightarrow Δ BaO+2NO2+(1/2)O2; Alkali metal nitrates give only O2 gas Alkali metal nitrates give only O2 on heating below 500°C according to following reaction, MNO3 → MNO2 + O2

Q. Which of the following salts on heating gives a mixture of two gases?

$B a (N O_{3})_{2}$

$N a N O_{3}$

$K N O_{3}$

$R b N O_{3}$

$B a (N O_{3})_{2} Δ B a O + 2 N O_{2} + \frac{1}{2} O_{2}$ ; Alkali metal nitrates give only $O_{2}$ gas
Alkali metal nitrates give only $O_{2}$ on heating below $50 0^{\circ} C$ according to following reaction,
$MN O_{3} \to MN O_{2} + O_{2}$

Q. Which of the following salts on heating gives a mixture of two gases?

Ba(NO3​)2​

NaNO3​

KNO3​

RbNO3​

Ba(NO3​)2​Δ​BaO+2NO2​+21​O2​; Alkali metal nitrates give only O2​ gas Alkali metal nitrates give only O2​ on heating below 500∘C according to following reaction, MNO3​→MNO2​+O2​

$B a (N O_{3})_{2}$

$N a N O_{3}$

$K N O_{3}$

$R b N O_{3}$

$B a (N O_{3})_{2} Δ B a O + 2 N O_{2} + \frac{1}{2} O_{2}$ ; Alkali metal nitrates give only $O_{2}$ gas
Alkali metal nitrates give only $O_{2}$ on heating below $50 0^{\circ} C$ according to following reaction,
$MN O_{3} \to MN O_{2} + O_{2}$