Write the chemical reaction when iron reacts with dilute `H_2SO_4`.

Write the chemical reaction to show that concentrated H_2SO_4 is an oxidising agent?

How is nylon-6, 6 synthesised? Write the chemical equation for the reaction involved.

Explain the chemical reaction. (a) Lead(II) chloride reacts with Cl_2 to give PbCl_4 .

Write the chemical reaction stating the reaction conditions require for each of the following conversions: p-toluidine to 2-bromo-4-methyl aniline.

Write one chemical reaction to show that conc. H_2SO_4 is a dehydrating agent.

What happens when carbon is heated with conc H_2SO_4

Write the chemical reaction to illustrate the following: Coupling reaction