Q1. Why do we add little dilute sulphuric acid to copper sulphate solution during electroplating?
(a) to increase acidity
(b) to increase conductivity
Q2. In which of the following current is not conducted by electrons?
(a) mercury
(b)silver
(c)common salt
(d)copper
Q3. Why is it important to prepare the surface before beginning electroplating?
Dear student
answer to question 1 is (b) to increase conductivity
answer ro question 2 is (c) common salt in which current is conducted by flow of ions
it is important to prepare surface before beginning because sometimes there is contamination on the surface that could lead to bad electroplating
with regards
answer to question 1 is (b) to increase conductivity
answer ro question 2 is (c) common salt in which current is conducted by flow of ions
it is important to prepare surface before beginning because sometimes there is contamination on the surface that could lead to bad electroplating
with regards