Q.1
If nearly 105 coulombs liberate 1 gm equivalent of aluminum, then the amount of aluminum ( equivalent weight 9), deposited through electrolysis in 20 minutes by a current of 50amp will be... [ CBSE PMT 1998]
  • a) 0.6 gm
  • b) 0.09 gm
  • c) 5.4 gm
  • d) 10.8 gm
Q.2
In producing chlorine through electrolysis, 100 watt power at 125V is being consumed. How much chlorine per minute is liberated? E.C.E of chlorine is 0.367×10⁻⁶ kg/coulomb [ CBSE-PMT 2006]
  • a) 21.3 mg
  • b) 24.3 mg
  • c)13.6 mg
  • d)17.6 mg
Q.3
A steady current of 1.5 amp flows through copper voltmeter for 10 minutes. If the electrochemical equivalent of copper is 30×10⁻⁵ g/coulomb, the mass of copper deposited on the electrode will be.. [ CBSE-PMT 2007]
  • a)0.50 g
  • b) 0.67 g
  • c)0.27g
  • d)0.40g
Q.4
In producing chlorine by electrolysis 100kW power at 125V is being consumed. How much chlorine per minute is liberated? (E.C.E. of chlorine is 0.367×10⁻⁶ kg/C) [ CBSE-PMT 2010]
  • a) 1.76×10⁻³ kg
  • b) 9.67×10⁻³ kg
  • c)17.61×10⁻³ kg
  • d)3.67×10⁻³ kg
Q.5
What is the energy stored in the capacitor?
ch-15_que_no-40_img_no1.png
  • a) 72 µJ
  • b) 128µJ
  • c) 96mJ
  • d) 96MJ
Q.6
A 40µF capacitor in a defibrillator is charged to 3000V. The energy stored in the capacitor is sent through the patient during a pulse of duration 2ms. The power delivered to the patient is [ AIIMS 2004]
  • a) 45 kW
  • b) 90 kW
  • c) 180 kW
  • d) 360 kW
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