What is Lassaigne's test?

What is Lassaignes test? Describe with necessary chemical equations the detection of nitrogen by this test.

What is carbylamine test?

Write down the reaction involved in the detection of nitrogen and sulphur in an organic compound by Lassaigne's test.

What is sure test of magnetism?

What is ferromagnetism? What are the ferromagnetic substance?

What is a transformer? On what principle it is based?

What is a shunt? What is its use?

What is Reynold's number? What is its physical significance?

Write short notes on: Tollen's test