Magnetic Effects of Electric Current — Science STD 10 — Question

How is the neutralisation of a carbonate with an acid different from the neutralisation of an oxide or a hydroxide?

What is the name of surgical method of birth control in human males in which the sperm ducts are cut and ligated (tied) at both ends?

Write the balanced equations for the following reactions, and add the state symbols:
Magnesium carbonate reacts with hydrochloric acid to produce magnesium chloride, carbon dioxide and water.

Give one example of a combination reaction which is also exothermic.

Which particles constitute the electric current in a metallic conductor?

What type of chemical reaction is used to extract metals from their naturally occurring compounds like oxides or chlorides?

Mention any two areas where solar cells are being used as a source of energy.

In which wire in an A.C. housing circuit is the switch introduced to operate the lights?

What is meant by ‘heredity’? What are the units of heredity.