The conjugate base of `H_2SO_4` is________.

Mention two uses of H_2SO_4 .

Write down the conjugate bases of following Bronsted acids: HCl, H_2S, and HNO_3

Calculate the molecular masses of H_2,O_2, Cl_2,CO_2, CH_4, C_2H_6,C_2H_4,NH_3,CH_3OH

Describe the conditions of maximum yield of SO_3 by contact process in the manufacture of H_2SO_4 .

What happens when ethyne is passed through dilute solution of H_2SO_4 in presence of Hg^(2+) ion.

In the contact process for the manufacture of H_2SO_4 some amount of sulphuric acid is used as a starting material. Explain briefly, which is the catalyst used for the oxidation of SO_2 to SO_3 ?

The final product obtained during the manu-facture of H_2SO_4 by contact process is.