Chemistry MCQs Online Quiz Test 15

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Chemistry Solved Online MCQs Quiz Test

Q.1: When the value of Kc is very small then————?

  1. reaction is at start
  2. product conc. Is maximum
  3. reactant conc. Is minimum
  4. reaction is completed

B

Q.2: Idea of pH and pOH was put forward by——–?

  1. Gibbs
  2. Einstein
  3. Sorenson
  4. Chadwick

C

Q.3: Ka<10-3 means-------?

  1. Very strong base
  2. Very weak acid
  3. Very strong acid
  4. Very strong salt

B

Q.4: Phosphorus helps in the growth of———?

  1. root
  2. leave
  3. stem
  4. seed

D

Q.5: Which one of the following raw material is not present in the cement ?

  1. lime stone
  2. gypsum
  3. KNO3
  4. iron oxide

D

Q.6: The sequence of zones in the rotary kiln are as———-?

  1. dry zone burning zone decomposition zone cooling zone
  2. cooling zone burning zone decomposition zone dry zone
  3. burning zone cooling zone decomposition zone
  4. dry zone decomposition zone burning zone cooling zone

D

Q.7: The rate of reaction———-?

  1. Increases as the reaction proceeds
  2. Decreases as the reaction proceeds
  3. Remains the same as the reaction proceeds
  4. May decrease or increase as the reaction proceeds

B

Q.8: The specific rate constant of a first order reaction depends on the——–?

  1. Time
  2. Concentration of the reactant
  3. Temperature
  4. Concentration of the product

C

Q.9: The value of activation energy is primarily determined by——–?

  1. Temperature
  2. Effective collision
  3. Concentration of reactants
  4. Chemical nature of reactants and products

B

Q.10: Spontaneous reactions are——–?

  1. Moderate
  2. Slow
  3. Fast
  4. not natural

C