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MCQs

Total Questions : 105 | Page 1 of 11 pages
Question 1. The buffers present in the blood contain
  1.    HCO₃-
  2.    hemoglobin
  3.    H₂PO₄-
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 2. In a human body, the pH of blood is maintained between
  1.    7.35-7.45
  2.    7.1-8.1
  3.    6.1-7.1
  4.    7.53-8.53
 Discuss Question
Answer: Option A. -> 7.35-7.45
Answer: (a).7.35-7.45
Question 3. The enzyme (carbonic anhydrase) is used in
  1.    aerobic respiration
  2.    anaerobic respiration
  3.    transpiration
  4.    photosynthesis
 Discuss Question
Answer: Option A. -> aerobic respiration
Answer: (a).aerobic respiration
Question 4. One of the best catalysts which increase the rate of reaction by million times is
  1.    carbolic anhydrase
  2.    carbonic anhydrase
  3.    carbolic hydrase
  4.    carbonic hydrase
 Discuss Question
Answer: Option B. -> carbonic anhydrase
Answer: (b).carbonic anhydrase
Question 5. Rainwater has pH in unpolluted regions of
  1.    6
  2.    7
  3.    5.7
  4.    7.5
 Discuss Question
Answer: Option C. -> 5.7
Answer: (c).5.7
Question 6. Nickel is good at
  1.    adsorption only
  2.    chemisorptions only
  3.    desorption
  4.    adsorption and chemisorptions
 Discuss Question
Answer: Option D. -> adsorption and chemisorptions
Answer: (d).adsorption and chemisorptions
Question 7. Catalysis of hydrolysis of esters is done by
  1.    hydrogen ions
  2.    ethers
  3.    alcohols
  4.    phenols
 Discuss Question
Answer: Option A. -> hydrogen ions
Answer: (a).hydrogen ions
Question 8. During catalytic process nitrogen oxides and carbon monoxide is adsorbed on
  1.    catalyst surface
  2.    reactant
  3.    products
  4.    combustion chamber
 Discuss Question
Answer: Option A. -> catalyst surface
Answer: (a).catalyst surface
Question 9. In Haber process bonds between ammonia and iron surface weaken and break during
  1.    adsorption
  2.    chemisorptions
  3.    desorption
  4.    none of above
 Discuss Question
Answer: Option D. -> none of above
Answer: (d).none of above
Question 10. Reaction of gaseous molecules at surface of solid catalyst is done in
  1.    homogeneous catalysis
  2.    heterogeneous catalysis
  3.    hypogenous catalyst
  4.    hypergeneous catalyst
 Discuss Question
Answer: Option B. -> heterogeneous catalysis
Answer: (b).heterogeneous catalysis

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