SSLC (English Medium) Class 10 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Why is a dietary restriction recommended for an obese individual?

Higher Order Thinking Skill (HOT)

What is the role of fat in the cause of atherosclerosis?

______ is a biosphere reserve in Tamilnadu.

National park is a protected park.

Wild life protection act was established in 1972.

Which of the following is a triatomic molecule?

If a molecule is made of similar kinds of atoms, then it is called ______ atomic molecule.

The Atomicity of phosphorous is ______

Two elements sometimes can form more than one compound.

Define: Atomicity.

Give any two examples for heterodiatomic molecules.

Derive the relationship between Relative molecular mass and Vapour density.

Neon shows zero electron affinity due to ______.

Deliquescence is due to ______.

Which of the following is hygroscopic in nature?

When Silica gel is kept open, it absorbs moisture from the air, because it is hygroscopic in nature.

Classify the following substances into deliquescent, hygroscopic. Conc. Sulphuric acid, Copper sulphate pentahydrate, Silica gel, Calcium chloride, and Gypsum salt.

In what way, hygroscopic substances differ from deliquescent substances.

Photolysis is a decomposition reaction caused by ______

Electrolysis is type of ______ reaction.