Question

Question 1.
Electroplating is based on
(a) heating effect of electricity
(b) chemical effect of electricity
(c) physical effect of electricity
(d) magnetic effect of electricity

Question 2.
Polythene is
(a) a conductor
(b) an insulator
(c) both (a) and (b)
(d) none of these

Question 3.
An electric current can produce
(a) heating effect
(b) chemical effect
(c) magnetic effect
(d) all of these

Question 4.
Which of the following is a bad conductor of electricity?
(a) Distilled water
(b) Silver nitrate
(c) Sulphuric acid
(d) Copper sulphate

Question 5.
Iron objects can be protected by electroplating them with
(a) chromium
(b) nickel
(c) zinc
(d) all of these​

Answer 1

Answer:

1b, 2b, 3d, 4a, 5b these are the answers