Class IX

Substance present in lesser amount in solution is
  1. solute
  2. solvent
  3. aqueous solvent
  4. none of above
Molarity of solution which contains 40 g urea dissolved in 500cm3 is
  1. 1.2 M
  2. 1.389 M
  3. 1.334 M
  4. 1.5 M
In presence of crystals of solute a supersaturated solution is
  1. not stable
  2. stable
  3. cannot be made
  4. none of above
. To prepare ammonia gas, gaseous mixture of
  1. hydrogen and chlorine is used
  2. hydrogen and nitrogen is used
  3. hydrogen and helium is used
  4. hydrogen and iodine is used
Concentration of a dilute solution
  1. is high
  2. is in comparable
  3. can be both A and B
  4. is low
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