Analytical Chemistry Question 164

Question: $ MnO_2 $ and $ H_2SO_4 $ added to $ NaCl $ , the greenish yellow gas liberated is

[Orissa JEE 2005]

Options:

A) $ Cl_2 $

B) $ NH_3 $

C) $ N_2 $

D) $ H_2 $

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Answer:

Correct Answer: A

Solution:

Yellowish-green gas of chlorine with suffocating odour is evolved when the solid chloride mixed with manganese dioxide is heated with concentrated $ H_2SO_4 $ . $ NaCl+H_2SO_4\to NaHSO_4+HCl $

$ MnO_2+4HCl\to MnCl_2+2H_2O+Cl_2 $