Class XI

Sulfuric Acid (H2SO4) is an example of
  1. Strong electrolyte
  2. Non-electrolyte
  3. Weak electrolyte
  4. Natural acid
Most reactive metal in given series is
  1. Tin
  2. Copper
  3. Lead
  4. Silver
Selective discharge occurs
  1. if more difference is in reactivity series
  2. if low difference is in activity series
  3. if more than one type of anions is attracted to cathode
  4. if more than one type of anions is attracted to cathode
In H2O molecule, unbounded electrons in oxygen are
  1. 1
  2. 2
  3. 3
  4. 4
 Heating and cooling curves are plots of
  1. Temperature against mass
  2. Temperature against kinetic energy
  3. Available space against kinetic energy
  4. Temperature against time
Time Elapsed

HR : MIN : SEC
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