Chlorine is liberated, when we heat
Options
(a) Pb(NO₃)₂ + MnO₂
(b) K₂Cr₂O₇ + MnO₂
(c) KMnO₄ + NaCl
(d) K₂Cr₂O₇ + HCl
Correct Answer:
K₂Cr₂O₇ + HCl
Explanation:
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