Chemistry
Name the gas evolved in each of the following cases:
(i) Alumina undergoes electrolytic reduction.
(ii) Ethene undergoes hydrogenation reaction.
(iii) Ammonia reacts with heated copper oxide.
Related Questions
Copper sulphate solution reacts with sodium hydroxide solution to form a precipitate of copper hydroxide according to the equation:
2NaOH + CuSO4 ⟶ Na2SO4 + Cu(OH)2↓
(i) What mass of copper hydroxide is precipitated by using 200 g of sodium hydroxide.
[H = 1, O = 16, Na = 23, S = 32, Cu = 64]
(ii) What is the colour of the precipitate formed.
Find the empirical and molecular formula of an organic compound from the data given: C = 75.92%, H = 6.32% and N = 17.76%. The vapour density of the compound is 39.5
[C = 12, H = 1, N = 14]
Copy and complete the following table which refers to the industrial method for preparation of ammonia and sulphuric acid.
Name of the compound Name of the process Catalytic equation
[with the catalyst]Ammonia (i) (ii) Sulphuric acid (iii) (iv)