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MCQs

Total Questions : 3103 | Page 1 of 311 pages
Question 1. Sizing material is incorporated in paper to
  1.    Impart resistance to penetration by liquids
  2.    Increase its thickness
  3.    Increase its flexibility & opacity
  4.    Increase its brightness
 Discuss Question
Answer: Option A. -> Impart resistance to penetration by liquids
Question 2. Chemical name of Grignard reagent is
  1.    Sodium thiosulphate
  2.    Ethyl magnesium chloride
  3.    Sodium sulphite
  4.    Sodium bicarbonate
 Discuss Question
Answer: Option B. -> Ethyl magnesium chloride
Question 3. In industrial nomenclature, alcohol means
  1.    Butyl alcohol
  2.    Propyl alcohol
  3.    Ethanol
  4.    Methyl alcohol
 Discuss Question
Answer: Option C. -> Ethanol
Question 4. Addition of calcium oxide to water produces
  1.    Exothermic heat
  2.    Hissing sound
  3.    Slaked lime
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 5. Alcohol is produced by the
  1.    Oxidation of an aldehyde
  2.    Hydrolysis of an ether
  3.    Esterification of a fat
  4.    None of these
 Discuss Question
Answer: Option B. -> Hydrolysis of an ether
Question 6. All enzymes are made of
  1.    Fats
  2.    Carbohydrates
  3.    Proteins
  4.    Amino acids
 Discuss Question
Answer: Option C. -> Proteins
Question 7. Reaction of an alcohol with organic acid is called the __________ reaction.
  1.    Saponification
  2.    Esterification
  3.    Neutralisation
  4.    Acidification
 Discuss Question
Answer: Option B. -> Esterification
Question 8. Impurities present in brine is normally removed by treatment with
  1.    NH₃ and CO₂
  2.    Lime and soda ash
  3.    Lime, ammonia and carbon
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 9. Which of the following is an organo-metal-lic compound?
  1.    Isopropyl alcohol
  2.    Tetra-ethyl lead
  3.    Zeolite
  4.    Cumene
 Discuss Question
Answer: Option B. -> Tetra-ethyl lead
Question 10. Analgesic drugs are
  1.    Pain relievers
  2.    Antibiotics
  3.    Used in the treatment of T.B.
  4.    Used in the treatment of typhiod
 Discuss Question
Answer: Option A. -> Pain relievers

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