Chemical Process
Pick out the wrong statement pertaining to nitric acid.

Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂)
It is a strong mono basic acid which reacts with almost all the metals except noble metals
About 90% of nitric acid is manufactured by Ostwald
Arc process of nitric acid manufacture is economical as compared to Ostwald

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Chemical Process
In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

Gives higher conversion efficiency
Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant
All of these
Has a longer life and is not poisoned by arsenic

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