Class X

Process of separating metal from ore is called
  1. magnetic separation
  2. floatation process
  3. metallurgy
  4. cyclone separation
A reversible reaction
  1. always completes
  2. never goes to completion
  3. Spontaneous reactions
  4. non spontaneous reactions
State at which forward and reverse reactions occur at same rate is
  1. equilibrium
  2. unstable equilibrium
  3. not in equilibrium
  4. neutral equilibrium
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
When diluting acid always add
  1. water to acid
  2. acid to water
  3. can be both ways
  4. acid cannot be diluted
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