Describe the chemistry of detection of `S` by Lassaigne's method.

Describe the chemistry of detection of N by Lassaigne's method.

Define green chemistry.

Give the chemistry of Borax bead test.

Give the chemistry of brown ring test.

Describe the method of refining of nickel.

Give the chemistry of Lassaigne's test for detection of N in an organic compound.

Short Answer Questions Three mark Each Describe the vegetative reproduction by grafting method. Mention some examples of it.