Modern Periodic Table and Periodic Properties — Chemistry STD 10 — Question

Write the equation for :
The preparation of hydrogen chloride from sodium chloride and sulphuric acid. State whether the sulphuric acid should be concentrated or dilute.

The list of some organic compounds is given below:
Ethanol, ethane, methane, ethyne and ethene
From the above list, name a compound:
Which has vapour density 14 and turns acidic potassium permanganate colourless?

Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Give balanced reactions for the following conversion:
Ammonia to ammonium carbonate.

An amphoteric hydroxide.

Explain why When the stopper of a bottle full of hydrogen chloride gas is opened there are fumes in the air.

Name a non-metallic element which is a conductor of electricity.

State the type of bonding in the following molecule.
ammonium chloride

Name an ore which is :
A sulphide

Name:
A colourless gas which bleaches.