London smog is _____________ in nature.

Assertion London smog is oxidising in nature. Reason London smog contains 'O3, NO2' and hydrocarbons . (i)Both Assertion and Reason are true and Reason is the correct explanation of Assertion. (ii)Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. (iii)Assertion is true but Reason is false. (iv)Both Assertion and Reason are false.

Which of the following statements is false? (1)Photochemical smog causes irritation in eyes. (2)London smog is a mixture of smoke and fog. (3)Photochemical smog results in the formation of PAN. (4)London smog is oxidising in nature

In a photo chemical smog the gas that causes eye irritation is _________ .

Taking the set of natural number as the universal set, write down the complements of the following sets: {x:x is an even natural number }

H_2O and HCO_3 are amphoteric in nature. Establish the amphoteric nature of H_2O with suitable examples.