Question

Someone report may 1st two faces question​

Answer 1

Answer:

Vanadium-based catalysts have well known uses in several reactions such as oxidative dehydration [1,2], oxidative dehydrogenation [3] and in the notable oxidation of sulfur dioxide to sulfur trioxide, a step in the production of sulfuric acid.

Answer 2

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Forgotten Chandela Rajput King Vidhyadhara and the story of how he stopped Ghazni's advance in India. When we talk about the expeditions of Mahmud Ghazni ,we seem to only give importance to the fact that he invaded India 17 times and plundered the temples, thier huge wealth and took slaves through these barbaric raids.