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When zinc oxide is heated with cobalt nitrate, a green mass is formed due to
(A) CoZnO2
(B) Rinmann’s green
(C) Both A and B
(D) Neither A nor B
2Co(NO3)2 ------------> 2CoO + 2NO2 + O2
ZnO + CoO --------> CoZnO2 or CoO.ZnO
Rinmann’s Green
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