Organic Chemistry — Chemistry STD 10 — Question

How is acetic acid prepared from ethanol?

Explain, the statement In each period, the atomic radii gradually decrease with increase in atomic number. Give one example to justify your answer.

1 molar solution of acetic acid is a weak acid as compared to 0.1 molar solution of hydrochloric acid. Why? Explain your answer.

Give the Dot diagram of the first member of the alcohol

State one appropriate observation of the following:
Concentrated HCl is made to react with mangesediaoxide

Give reason for the following:
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.

Write a balanced equation and name the products formed when:
cupric oxide reacts with nitric acid 

State : Gay-Lussac's Law of combining volumes.

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