A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H

Question

A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H (A) NH4 NO3 (B) NH4 NO2 (C) NH4 Cl (D) (NH4)2 SO4

Tardigrade Admin · Accepted Answer

NH4 NO3 + NaOH longrightarrow NaNO3 + NH3 + H2 O NH4 NO2 + NaOH longrightarrow NaNO2 + NH3 + H2 O

Q. A solution of colourless salt $H$ on boiling with excess $N a O H$ produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of $Z n$ dust to the same solution, the gas evolution restarts. The colourless salt(s) $H$

$N H_{4} N O_{3}$

$N H_{4} N O_{2}$

$N H_{4} Cl$

$(N H_{4})_{2} S O_{4}$

$N H_{4} N O_{3} + N a O H ⟶ N a N O_{3} + N H_{3} + H_{2} O$
$N H_{4} N O_{2} + N a O H ⟶ N a N O_{2} + N H_{3} + H_{2} O$

Q. A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H

NH4​NO3​

NH4​NO2​

NH4​Cl

(NH4​)2​SO4​