Chemistry
Which of the process is known as nitrification?

Conversion of ammonia to nitrites
Conversion of nitrite to nitric oxide
Reaction of nitrogen dioxide with water to form nitric acid
Reaction of Nitrogen Monoxide with oxygen to form nitric acid

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Chemistry
Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water.

Both A and R is true but R is not a correct explanation of A
Both A and R is true and R is the correct explanation of A
A is false but R is true
A is true but R is false

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