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MCQs

Total Questions : 740 | Page 66 of 74 pages
Question 651. Large molecules made up of small monomers are called
  1.    peptides
  2.    polymers
  3.    peptones
  4.    monomers
 Discuss Question
Answer: Option B. -> polymers
Answer: (b).polymers
Question 652. Secondary alcohol forms ketone and water by reacting with
  1.    oxygen atom
  2.    oxygen molecule
  3.    ozone molecule
  4.    oxygen ion
 Discuss Question
Answer: Option A. -> oxygen atom
Answer: (a).oxygen atom
Question 653. In additional polymerization, a monomer with double bond will simply
  1.    turn into single bond
  2.    remain same
  3.    break
  4.    get rotated
 Discuss Question
Answer: Option A. -> turn into single bond
Answer: (a).turn into single bond
Question 654. Using more than one type of unsaturated monomer will produce a
  1.    co-polymer
  2.    polyamides
  3.    polyesters
  4.    polytone
 Discuss Question
Answer: Option A. -> co-polymer
Answer: (a).co-polymer
Question 655. Further addition of ethanol will lead to the different product as
  1.    ethanoic acid
  2.    ketones
  3.    benzaldehyde
  4.    aldehydes
 Discuss Question
Answer: Option A. -> ethanoic acid
Answer: (a).ethanoic acid
Question 656. The waxy layer of plants are attacked which increases water loss hence making it prone to pest and bacteria which is due to
  1.    chemicals
  2.    acid rain
  3.    fertilizers
  4.    none of above
 Discuss Question
Answer: Option B. -> acid rain
Answer: (b).acid rain
Question 657. Chemists have produced low sulfur version of petrol and diesel to reduce the emission of
  1.    sulfur dioxide
  2.    carbon dioxide
  3.    carbon monoxide
  4.    sulfur trioxide
 Discuss Question
Answer: Option A. -> sulfur dioxide
Answer: (a).sulfur dioxide
Question 658. Processed foods, pickles, syrups and fruit juices are stored in
  1.    SO₂
  2.    CO₂
  3.    NO
  4.    NO₂
 Discuss Question
Answer: Option A. -> SO₂
Answer: (a).SO₂
Question 659. Sulfur dioxide is added to foods to stop
  1.    oxidation of fats only
  2.    over ripening only
  3.    reduction of sugars
  4.    oxidation of fats and over ripening
 Discuss Question
Answer: Option D. -> oxidation of fats and over ripening
Answer: (d).oxidation of fats and over ripening
Question 660. Acid rain has effects on
  1.    plants
  2.    building
  3.    drinking water
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above

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