In the following question, select the odd word from the given alternatives.

In the following question, select the odd word from the given alternatives.

What is an oxidation-reduction reaction called?

Which acid is in tamarind?

In the following question, select the odd word from the given alternatives.

In the following question, select the odd number from the given alternatives.

The level of sound during normal conversation is

Which of the following is not a source of air pollution?