Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

What is the ‘coagulation’ process?

What is meant by the following term? Give an example of the reaction in each case.Hemiacetal.

Adsorption of a gas on the surface of solid is generally accompanied by a decrease in entropy still it is a spontaneous process. Why?

Suggest a reagent for conversion of ethanol to ethanal.

Name two a-amino acids which form a dipeptide which is 100 times more sweet than cane sugar?

What is meant by the term ‘pyrometallurgy’?

What are biodegradable and non-biodegradable detergents? Give one example of each.

Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side.
Reason: Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.

What is the major alkene obtained from the dehydration of Butan-l-ol?