Organic Chemistry — Chemistry STD 10 — Question

Explain, why a solution of an ionic compound is an electrolyte while that of a covalent compound is a non- electrolyte.

How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.

What is the difference in the molecular formula of any two adjacent homologues:
(i) In terms of molecular mass
(ii) In terms of number and kind of atoms per molecule?

Give a balanced equation for the following conversation.
An alkene to an alkane

Explain the following:
Aluminium is extensively used for making aircraft parts.

Write the equations to show what happens when ethyne gas reacts with
Bromine water

Explain the following:
Electrovalent compounds dissolve in water whereas covalent compounds do not.

(a) What do you understand by the term roasting of ore?
(b) What is the importance of roasting in the extraction of metals?

Give reason for the following:
(i) Non-polar covalent compounds insoluble in water.
(ii) Non-polar covalent compounds are bad conductors of electricity.