11.4 Alkynes — Chemistry STD 10 — Question

How is the passage of electricity through an electrolyte different from the passage of electricity through a copper wire?

Copy and complete the following table relating to important industrial process.

Name of the process	Temperature	Catalyst	Equation for the catalyzed reaction
Habers Process

In order to obtain 1 tonne of aluminium the following inputs are required. 4 tonnes of bauxite, 150 kg of sodium hydroxide and 600 kg of graphite. The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (III) oxide, Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite
♦ when bauxite is treated with sodium hydroxide solution, what happens to
(i) the aluminium oxide
(ii) the iron (III) oxide

During the laboratory preparation, how is ammonia dried and collected?

Define the following and give two examples in case an acid salt .

Give reason for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.