GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
3. Do not refresh or back page.
4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
In which of the following process electroplating is used?
For making artificial jewellery
To reduce friction
Both (a) and (b) are correct.
None of these
2
Electroplating can be used for _______________.
Cutlery
Jewellery
Statues
All of these.
3
Why there is need to do electroplating ?
To protect
To decorate
All of these
4
The cells which cause chemical reactions to occur in them when an electric current is passed through them are called ____________________.
Electrolytic cells
Galvanic cell
Voltaic Cell
5
Electrolysis is used in the production of ____________________ .
Aluminium
Magnesium
Chlorine
6
The cells capable of generating an electric current from the chemical reactions occurring in them are called __________________.
Dry cell
Both (a) and (b)
7
An electrochemical cell is a device which converts chemical energy into ___________________.
Electrical energy
Heat energy
Solar energy
8
In electroplating, metal to be plated is made the _______________________.
anode
cathode
both cathode and anode
amode or cathode
9
In electroplating of a iron spoon by copper, the copper plate is made ______________________.
cathode or anode
none of these
10
Choose the correct statement(s) in case of a voltaic cell.
(a) Cathode used is Zn and anode used is copper.
(b) The electrolyte used is dilute sulphuric acid
Only A is true
Only B is true
Both A and B are true
Both A and B are false
11
Which of the following Statements are correct :
(a) The object to be coated is made the anode.
(b) The metal to be deposited on the object is taken in the form of an electrode and made the cathode.
(c) The electrolyte contains dissolved salts of the metal to be coated.
Only (a) is correct.
Only (b) is correct.
Only (c) is correct.
None of these is correct
12
Choose the correct statements (s) in case of a voltaic cell.
(a) Cathole used is Zn and anode used is copper.
(b) the electrolyte used is dilute sulphuric acid.
Only (A) is true.
Only (B) is true.
Both (A) and (B) are true.
Both (A) and (B) are false.
13
Electroplating is done to _______________.
prevent corrosion
for decoration
to obtain pure metal
both (a) and (b)
14
Which of the following are correct :
(a) Electroplating is used for decoration.
(b) Electroplating is used in the manufacture of printed circuit boards.
(c) The object to be coated is made the cathode.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
15
A S, B R, C T, D Q, E P
A S, B P, C T, D Q, E R
A R, B S, C T, D Q, E P
A S, B P, C Q, D T, E R