P-Block Elements Ques 172
Question: Chlorine is liberated, when we heat
[AFMC 1998]
Options:
A) $ KMnO_4+NaCl $
B) $ K_2Cr_2O_7+MnO_2 $
C) $ Pb_2{{(NO_3)}_4}+MnO_2 $
D) $ K_2Cr_2O_7+HCl $
Show Answer
Answer:
Correct Answer: D
Solution:
$ K_2Cr_2O_7+14HCl\to 2KCl+2CrCl_3 $ $ +7H_2O+3Cl_2 $