Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature?

Question

Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature? (A) NaCl and MnO2 (B) NaCl and HNO3 (conc.) (C) NaCl and H2SO4 (con.) (D) HCl (conc.) and KMnO4

Tardigrade Admin · Accepted Answer

2KMnO4 + 3H2SO4 + 10HCl arrow K2SO4 + 2MnSO4 + 8H2O + 5Cl2

Q. Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature?

$N a Cl$ and $M n O_{2}$

$N a Cl$ and $H N O_{3}$ (conc.)

$N a Cl$ and $H_{2} S O_{4}$ (con.)

$H Cl$ (conc.) and $K M n O_{4}$

$2 K M n O_{4} + 3 H_{2} S O_{4} + 10 H Cl \to K_{2} S O_{4}$
$+ 2 M n S O_{4} + 8 H_{2} O + 5 C l_{2}$

Q. Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature?

NaCl and MnO2​

NaCl and HNO3​ (conc.)

NaCl and H2​SO4​ (con.)

HCl (conc.) and KMnO4​

2KMnO4​+3H2​SO4​+10HCl→K2​SO4​ +2MnSO4​+8H2​O+5Cl2​

$N a Cl$ and $M n O_{2}$

$N a Cl$ and $H N O_{3}$ (conc.)

$N a Cl$ and $H_{2} S O_{4}$ (con.)

$H Cl$ (conc.) and $K M n O_{4}$

$2 K M n O_{4} + 3 H_{2} S O_{4} + 10 H Cl \to K_{2} S O_{4}$
$+ 2 M n S O_{4} + 8 H_{2} O + 5 C l_{2}$