Chemistry
Give an example of each:
Combination reaction in which:
(i) An element of valency 3 combines with nitrogen.
(ii) A non-metal oxide reacting with water to form an acid.
(iii) A metal oxide reacting with water to form its hydroxide.
Related Questions
Give a reason for the following :
(a) Silver nitrate solution is kept in coloured bottles.
(b) Molybdenum is used in the manufacture of ammonia.
(c) A blue solution of copper sulphate changes to green when a piece of iron is added to this solution.
(d) Colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it.
State the type of reactions and give one equation in each case.
(a) Two or more reactants combine to form a single product.
(b) A single reactant breaks up into two or more products.
Give an example of each:
Write the decomposition reactions for the following:
(i) Metallic oxide on heating forms metallic oxide and oxygen.
(ii) A compound on heating gives a gas which turns lime water milky.
(iii) A white hydroxide on heating gives a yellow residue and water vapours.
Write the reaction for the decomposition of a nitrate which does not yield nitrogen dioxide on heating.