Explain the action of glycerol with
(i) oxalic acid at 383 K
(ii) oxalic acid at 530 K
(iii) concentrated `HNO_(3)` and `H_(2)SO_(4)`.

Anisole with conc. HNO_(3) and conc. H_(2)SO_(4) gives

Pick up the reactions form the following where a water molecule is removed and reduction of NAD^(+) does not occur in the reactions of respiration (i) Succinic acid to fumaric acid (ii) Malic acid to oxalacetic acid (iii) 2-phosphoglycerate to phosphoenol pyruvic acid (iv) Pyruvic acid to acetyl CoA

Explain the formation of nitronium ion (overset(oplus)NO_2) from the reaction of concentrated HNO_3 and concentrated H_2SO_4 .

Explain why does the colour of KMnO_(4) disappear when oxalic acid is added to its solution in acidic medium.

Explain the following: HCIO_4 is a stronger acid than H_2SO_4 .

Heating of oxalic acid with conc. H_2SO_4 evolves:

Explain the dhydrating nature of concentrated H_2SO_4 with chemical equation.

In the nitration of benzene with a mixture of concentrated HNO_3 and concentrated H_2SO_4 the active species involved is :

Explain why in the laboratory preparation of H_(2)O_(2) : dilute H_(2)SO_(4) is used instead of concentrated H_(2)SO_(4) ,

What will happen when chlorobenzene reacts with a mixture of conc. HNO_(3) and conc. H_(2)SO_(4) ?