Which of the following is not a property of trioxonitrate (V) salts?
4
Which of the following methods is suitable for the preparation of an insoluble salt?
5
What is the function of sulphur (IV) oxide in the reaction represented by the following equation? SO 2(aq) + 2H 2 S (g) → 3S (s) + 2H 2 O (l)
6
Which of the following will produce oxygen and hydrogen during its electrolysis using platinum electrode?
7
What mass of copper would be deposited by a current of 1. 0 ampere passing for 965 seconds through copper (ll) tetraoxosulphate (IV) solution? [Cu = 63.5; 1F = 96500C]
8
How many electrons are removed from Cr2- when it is oxidized to CrO42-?
9
Substances which absorb water from the atmosphere without dissolving in it are sid to be
10
Pipe-borne water is usually chlorinated in order to
11
Which of the following can be added to dissolve the precipitate formed in the reaction represented by the following equation? CaCl 2(aq) + H 2 C 2 O 4(s) ⇌ CaC 2 O 2
12
The spontaneity of a chemical reaction is determined by the change in the
13
Two metallic ions commonly present in hard water are
14
Rusting of iron is an example of
15
Aluminium is extracted from
16
Metals are said to be malleable because they
17
A device used in the laboratory for intermittent production of gases without heating is
18
Which of the following can undergo both addition reactions and substitution reactions?
19
The liquid product of the destructive distillation of coal is
20
Which of the following alkanes has the highest boiling point?
21
Petrol consists mainly of
22
Dehydration of ethanol produces
23
When alkanols react with sodium, the ga evolved is
24
The products of the reaction between CH 3 CH 2 COOH and CH 3 OH are H 2 O and
25
A positive reaction to Fehling's test indicates the presence of
26
Which of the following compounds is used as a gaseous fuel?
