Question

Multiple Choice Questions (MCQS)
Tick (m) the correct option.
(a) Which of the following does not conduct electricity?
(i) Tap water
in lemon juice
(iii) Distilled water
liv All of these
b) When electrolysis of water is carried out, water is decomposed into
oxygen gas only
(0) hydrogen gas only
(ii) both hydrogen and
V oxygen and copper
oxygen gas
c) Which of the following can be used as a tester to check the flow of current through
a liquid?
6 Copper wire
(ii) LED
(ii) Iron spoon
(iv) Any of these
) Electrolysis is used for
() extraction of metals
fi manufacturing oi chemicals
() all of these
(1) refining of metals
le) The electrode connected to the negative terminal of a battery is called
(ii) arode
0 cathode
linone of these
um) i​

Answer 1

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Distilled water does not conduct electricity.

The electrode connected to the negative terminal of a battery is called cathode.

Answer 2

Answer:

distilled water

(b) (ii) both hydrogen and oxygen

(c) (iv) all of these