How `H_(2)SO_(4)" and HNO_(3)` acids affect our heritage monuments such as Taj Mahal ?

(a) Name two acids that are usually present in rain water. (b) How these acids affect our hearitage monuments such as Taj Mahal ?

Out of PAN, H_(2)CO_(3),H_(2)SO_(4) and HNO_(3) acid rain contains

One mole of As_(2)S_(3) is oxidized by HNO_(3) to H_(3)AsO_(4) and H_(2)SO_(4). HNO_(3) is converted into NO. The moles of HNO_(3) required are :

Order H_(3)PO_(4) gt H_(2)SO_(4) gt HNO_(3) gt HCl is correct for :-

HCl, H_(2)SO_(4), HNO_(3) are bases in liquid HF where as HClO_(4) is acid. Comment.

Assertion : A mixture of HNO_(3) and H_(2)SO_(4) is used for the nitration of benzene. Reason : H_(2)SO_(4) works as an acid HNO_(3) as a base to produce NO_(2)^(+) ioni.

Nitrobenzenen can be prepared from benzene by using a mixture of conc HNO_(3) and conc. H_(2)SO_(4) in the nitrating mixture. Nitric acid acts as a