Question

MCQ
1)When electric current is allowed to pass through an aqueous solution of lemon juice,a chemical reaction occurs. This shows that
a)electric current can produce chemical effects.
b)chemical reactions can only be brought about by electric current.
c)chemical reactions can produce electric current.
d)electric current does not produce any effect.

2)A dull copper plate and a shiny copper plate were connected to the terminals of a battery and immersed in an aqueous solution of copper sulphate. A few drops of dilute sulphuric acid were also added to the solution. This is done to:
a)neutralize the bases present in the solution.
b)increase the acidity of the solution.
c) purify the solution .
d)increases the conductivity of the solution.

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Answer 1

Answer:

1    a)electric current can produce chemical effects.

2  d)increases the conductivity of the solution.

Explanation:

Answer 2

Answer:

1)  a)electric current can produce the chemical effect

2) d)increases the conductivity of the solution.

Explanation: Hi :) I hope it's right