Complete the following by choosing the correct answers from the bracket:

(a) If an element has one electron in the outermost shell then it is likely to have the ……………. [smallest/ largest] atomic size amongst all the elements in the same period.

(b) ……………. [sulphuric acid/ hydrochloric acid] does not form an acid salt.

(c) A ……………. [reddish brown/ dirty green] coloured precipitate is formed when ammonium hydroxide is added to a solution of ferric chloride.

(d) Alkanes undergo ……………. [addition/ substitution] reactions.

(e) An ……………. [alkaline/acidic] solution will turn methyl orange solution pink.

Identify the following:

(a) A bond formed between two atoms by sharing of a pair of electrons, with both electrons being provided by the same atom.

(b) A salt formed by the complete neutralization of an acid by a base.

(c) A reaction in which the hydrogen of an alkane is replaced by a halogen.

(d) The energy required to remove an electron from a neutral gaseous atom.

(e) A homogenous mixture of two or more metals or a metal and a non-metal in a definite proportion in their molten state.

Identify the reactant and write the balanced equation for the following:

Nitric acid reacts with compound Q to give a salt Ca(NO₃)₂, water and carbon dioxide.

What property of Sulphuric acid is exhibited in each of the following cases:

(a) In the preparation of HCl gas when it reacts with Sodium chloride.

(b) When conc. Sulphuric acid reacts with Copper to produce Sulphur dioxide gas.