Why sulphuric acid is oily and viscous liquid ?

Why conc. sulphuric acid is always diluted by adding sulphuric acid to water with constant stirring and not water to the acid ?

Sulphuric acid is viscous in nature due to .............

What happens when: Dilute sulphuric acid is poured on a copper plate?

Why does concentrated sulphuric acid has high boiling point?

Sulphuric acid turns blue litmus red.

Explain why perchloric acid is a strong acid than sulphuric acid.

Why is sulphuric acid not used during the reaction of alcohols with KI ?