Which one of the following reacts with concentrated sulphuric acid ?

Concentrated sulphuric acid is:

Concentrated sulphuric acid is:

Concentrated sulphuric acid is not

A, B, C and D illustrate the properties of sulphuric acid whether dilute or concentrated. Choose the property (A, B, C, or D) depending on which one is relevant to each of the following: Action of concentrated sulphuric acid on sulphur.

Write a balanced chemical equation for the following: Action of concentrated sulphuric acid on Sulphur.

Write a balanced chemical equation for the following: Action of concentrated sulphuric acid on carbon.

Write balanced equation for the following: Action of concentrated sulphuric acid on carbon.

Various products formed when ethylene reacts with concentrated sulphuric acid at different temperatures substantiate.