Class XI

In electrolysis of aqueous solutions of dilute acids or dilute alkalis, amount of hydrogen given off is
  1. Roughly half of oxygen given off at anode
  2. Roughly same as of oxygen given off at anode
  3. Is roughly twice oxygen given off at anode
  4. Is roughly twice oxygen given off at cathode
 Endothermic reactions take place when
  1. Energy given out in making bonds is less than energy taken in for breaking bonds
  2. Energy given out in making bonds is more than energy taken in for breaking bonds
  3. Energy given out in making bonds is equal to energy taken in for breaking bonds
  4. All of these
CCC
  1. Strong electrolyte
  2. Non-electrolyte
  3. Weak electrolyte
  4. Catalyst
Electroplating of chromium helps in manufacturing of
  1. Car bumpers
  2. Saucepans
  3. Cutlery
  4. Watches
Water with lesser oxygen is known to
  1. Cause water pollution
  2. Disturb balance of life in river
  3. Be poisonous
  4. Both A and B
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP