p-Block Elements - I
easy

हाइड्रोजन गैस किसे अपचयित नहीं करेगी

A

गर्म क्यूप्रिक ऑक्साइड

B

गर्म फेरिक ऑक्साइड

C

गर्म स्टेनिक ऑक्साइड

D

गर्म एल्यूमीनियम ऑक्साइड

(IIT-1984)

Solution

Aluminium oxide cannot be reduced by hydrogen even under very hot conditions because $Al$ is more reactive than $H$. While other oxides can be reduced by hydrogen as they are below hydrogen in the metal reactivity series.

Standard 11
Chemistry

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