Chemistry
Raju is going to the laboratory for the preparation of sulphuric acid.
(a) Write the equations for sulphuric acid combining directly with metals and non-metals.
(b) Which concentrated acid will oxidise sulphur directly to sulphuric acid ? Write the equation for the same.
(c) What is the name of the process by which sulphuric acid is manufactured ? Name the catalyst used in the process.
Related Questions
For each of the formula of ores given below, what is their common names and role/use.
(a) Al2O3.2H2O
(b) Na3AlF6
Calculate.
(a) The vapour density of gas is 11. What would be the volume occupied by 19 g of the gas at STP?
(b) Give the empirical formula of butane.
Give reasons
(a) Brass is preferred over copper for door settings.
(b) Metals like iron, aluminium, cobalt and nickel become passive (inert) with concentrated nitric acid.
(c) Alloying of gold is done with silver or copper.
(a) Give balanced equation for the following.
(1) Sodium hydroxide is added to hydrogen chloride.
(2) Sodium aluminate is treated with water.
(b) If the valency of an element is 2, then to which group will this element belong to?