Chemotherapeatic agents

What is meant by Chelating agents? Explain the role of EDTA as chemical chelating agent.

Assertion: Sulphur dioxide and chlorine are bleaching agents. Reason: Both are reducing agents.

What are mutagenic agents? How is mutation induced by physical agents?

What are water proofing agents and water wetting agents? What do they do?

Differentiate the function of concentrated sulphuric acid as a drying agent & as a dehydrating agent. Is fused calcium chloride a dehydrating or a desiccating agent. Give reasons.

In Vallisneria the pollinating agent is water.