Class X

Solvay process is used to make
  1. potassium carbonate
  2. sodium carbonate
  3. NaCl
  4. NaOH
Rate at which reaction proceeds is directly related to
  1. active masses of reactants
  2. sum of active masses of reactants
  3. product of active masses of reactants
  4. ratio of active masses of reactants
Raw materials for Solvay process includes
  1. ammonia
  2. brine
  3. lime stone
  4. all of above
Color of crude oil is
  1. brownish black
  2. white
  3. transparent
  4. light yellow
Process of separating metal from ore is called
  1. magnetic separation
  2. floatation process
  3. metallurgy
  4. cyclone separation
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