A greenish yellow gas X is liberated when concentrated hydrochloric acid is heated with manganese dioxide?

No worries! We‘ve got your back. Try BYJU‘S free classes today!

SO₂

No worries! We‘ve got your back. Try BYJU‘S free classes today!

H₂S

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Cl₂

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
Cl₂

Concentrated hydrochloric acid can readily be oxidized to chlorine by strong oxidizing agents such as manganese dioxide, lead dioxide, red lead etc. Alternatively, we can say that hydrochloric acid readily reduces these compounds.

A greenish yellow gas $C l_{2}$ is liberated when concentrated hydrochloric acid is heated with an oxidizing agent like manganese dioxide.

The gas liberated turns moist starch iodide paper blue-black.

$M n O_{2} + 4 H C l \to M n C l_{2} + 2 H_{2} O + C l_{2}$

Suggest Corrections

Similar questions

Concentrated hydrochloric acid is added to manganese oxide to give metal chloride X, water and gas Y. Gas Y is greenish yellow having a sharp pungent choking odour. So, Y is:

Q. The black powder which gives greenish yellow gas when heated with conc. hydrochloric acid is :

Which of the following gas is liberated when red lead is heated with concentrated hydrochloric acid?

Q. Which of the following gas is evolved when concentrated hydrochloric acid is made to react with manganese dioxide?

Q. Identify the gas evolved in the following reactions when: Concentrated hydrochloric acid is made to react with manganese dioxide.

Join BYJU'S Learning Program