SSLC (English Medium) इयत्ता १० - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

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.

Chemical volcano is an example of ______ type of reaction.

Which of the following pairs can be the successive members of a homologous series?

What is called homologous series? Give any three of its characteristics?