Basic Principles of Organic Chemistry — Chemistry STD 11 Science — Question

How is ethylene converted into ethylidene dichloride?

Name two reagents used for acylation of benzene.

Give reason: Although chemistry has ancient roots, it has developed as a modern science.

Write names and electronic configurations of elements of first period in the modern periodic table. Identify which of them has the stable complete electronic configuration.

How small is the nucleus in comparison to the rest of the atom?

Alkenes can be obtained from which industrial sources?

Give the reactions supporting basic nature of ammonia.

Give reason: Liquid possesses properties such as fluidity, definite volume and ability to take shape of the bottom of the container in which it is placed.

Differentiate betwwen: Disinfectant and antiseptic

Point out the difference between 12 g of carbon and 12 u of carbon.