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MCQs

Total Questions : 197 | Page 15 of 20 pages
Question 141. Natural polymers are
  1.    cellulose
  2.    cellulose and protein
  3.    polyamide
  4.    polyester and protein
 Discuss Question
Answer: Option B. -> cellulose and protein
Answer: (b).cellulose and protein
Question 142. Characteristic/s of fibers necessary other than textiles is/are
  1.    high temperature stability
  2.    minimum strength
  3.    moderate extensibility
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 143. If molecules are heavy and attractive forces are strong then material would be
  1.    solid
  2.    liquid
  3.    gas
  4.    both a and b
 Discuss Question
Answer: Option D. -> both a and b
Answer: (d).both a and b
Question 144. Water is liquid with limited equilibrium with water vapors at
  1.    100 degrees
  2.    between 0 and 100 degrees
  3.    0 degrees
  4.    90 degrees
 Discuss Question
Answer: Option B. -> between 0 and 100 degrees
Answer: (b).between 0 and 100 degrees
Question 145. Light atoms are attracted towards each other with
  1.    attractive forces
  2.    combining forces
  3.    weak forces
  4.    strong forces
 Discuss Question
Answer: Option C. -> weak forces
Answer: (c).weak forces
Question 146. If flexibility is in main chain covalent bonds and weak bonding between long chain molecules, then thermal energy can cause chain to take up a
  1.    disordered arrangement
  2.    tangled arrangement
  3.    random arrangement
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 147. At ordinary temperatures, hydrogen bonds are in a
  1.    strong state
  2.    weak state
  3.    sensitive state
  4.    broken state
 Discuss Question
Answer: Option C. -> sensitive state
Answer: (c).sensitive state
Question 148. If material has strong tension, then molecules straightens out giving a
  1.    small extension
  2.    large extension
  3.    medium extension
  4.    variable extension
 Discuss Question
Answer: Option B. -> large extension
Answer: (b).large extension
Question 149. Matter is made up of atoms joined together with bonds of
  1.    same strength
  2.    varying strength
  3.    linear strength
  4.    weak strength
 Discuss Question
Answer: Option B. -> varying strength
Answer: (b).varying strength
Question 150. Light atoms can move with help of
  1.    strong energy
  2.    atom's energy
  3.    surrounding's energy
  4.    force
 Discuss Question
Answer: Option B. -> atom's energy
Answer: (b).atom's energy

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