## Chemical Effect of Current- MCQ-Basic

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of 10 Basic Level Questions on Chemical Effect of Current.You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. The negative Zn pole of a Daniell cell sending a constant current through the circuit, decreases in mass by 0.13 g in 30 minutes. If the electrochemical equivalent of Zn and Cu are 32.5 and 31.5 respectively, the increase in the mass of the positive Cu pole in this time is

•  0.242 g
•  0.180 g
•  0.141 g
•  0.126 g

0.126 g

Q2. If 96500 coulombs of electricity liberates one gram equivalent of any substance, the time taken for a current of 0.15 amperes to deposit 20mg of copper from a solution of copper sulphate is (Chemical equivalent of copper = 32)

•  5 min 20 sec
•  6 min 42 sec
•  4 min 40 sec
•  5 min 50 sec

6 min 42 sec

Q3. On passing 96500 coulomb of charge through a solution CuSO4 the amount of copper liberated is

•  64 gm
•  32 gm
•  32 kg
•  64 kg

32 gm

Q4. The electrochemical equivalent of a material in an electrolyte depends on

•  The nature of the material
•  The current through the electrolyte
•  The amount of charge passed through electrolyte
•  The amount of material present in electrolyte

The nature of the material

Q5. Two electrolytic cells containing CuSO4 and AgNO3 respectively are connected in series and a current is passed through them until 1 mg of copper is deposited in the first cell. The amount of silver deposited in the second cell during this time is approximately

•  1.7 mg
•  3.4 mg
•  5.1 mg
•  6.8 mg

3.4 mg

Q6. If nearly 10+5 coulomb liberate 1 gm equivalent of aluminium, then the amount of aluminium (equivalent weight 9) deposited through electrolysis in 20 minutes by a current of 50 ampere will be

•  0.6 g
•  0.09 g
•  5.4 g
•  10.8 g

5.4 g

Q7. The electro-chemical equivalent of magnesium is 0.126 mg/C. A current of 5 A is passed in a suitable solution for 1 hour. The mass of magnesium deposited will be

•  0.0378 g
•  0.227 g
•  0.378 g
•  2.27 g

2.27 g

Q8. 965 C charge deposits 1.08 gm of silver when passed through silver nitrate solution. What is the equivalent weight of silver

•  108
•  10.8
•  1.08
•  None of these

108

Q9. During the electrolysis, it is the

•  Electronic conduction every where
•  Ionic conduction every where
•  Ionic conduction inside and electronic conduction outside the voltmeter
•  Electronic conduction inside and ionic conduction outside the voltmeter

Ionic conduction inside and electronic conduction outside the voltmeter

Q10. During electrolysis of acidulated water, volumes of H2 and O2 are in the ratio of

•  1 : 1
•  1 : 2
•  2 : 1
•  8 : 1

2 : 1

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