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MCQs

Total Questions : 197 | Page 3 of 20 pages
Question 21. Graphite easily splits up because of
  1.    force
  2.    pressure
  3.    relative action
  4.    weak bond
 Discuss Question
Answer: Option D. -> weak bond
Answer: (d).weak bond
Question 22. Diamond is made up of atoms linked together with
  1.    van der Waal forces
  2.    valency bonds
  3.    weak bonds
  4.    light forces
 Discuss Question
Answer: Option B. -> valency bonds
Answer: (b).valency bonds
Question 23. Hydrogen bond is formed when electrons are shared by outer rings of
  1.    hydrogen and oxygen
  2.    hydrogen only
  3.    oxygen only
  4.    any atom
 Discuss Question
Answer: Option A. -> hydrogen and oxygen
Answer: (a).hydrogen and oxygen
Question 24. For material with rubbery state, at low temperature or stronger bonding material is a
  1.    plastic
  2.    glassy plastic
  3.    glassy gas
  4.    glassy liquid
 Discuss Question
Answer: Option B. -> glassy plastic
Answer: (b).glassy plastic
Question 25. Graphite is made up of
  1.    pure carbon
  2.    mixed carbon
  3.    combination of carbon
  4.    carbon and other atoms
 Discuss Question
Answer: Option A. -> pure carbon
Answer: (a).pure carbon
Question 26. Material when given tension straightens out and return on releasing tension, it is called as
  1.    random state
  2.    rubbery state
  3.    predictable state
  4.    unpredictable state
 Discuss Question
Answer: Option B. -> rubbery state
Answer: (b).rubbery state
Question 27. Water clarifies importance of hydrogen bond via
  1.    it's properties
  2.    being common
  3.    fibre plasticizer
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 28. Large extension of any material is
  1.    reversible
  2.    irreversible
  3.    weak
  4.    strong
 Discuss Question
Answer: Option A. -> reversible
Answer: (a).reversible
Question 29. Hydrogen bonds can be formed between -CO.NH- and can be found in
  1.    polyamide
  2.    protein fibers
  3.    both a and b
  4.    polyethylene
 Discuss Question
Answer: Option C. -> both a and b
Answer: (c).both a and b
Question 30. Arrangement of bonds and their strength determines the
  1.    physical properties
  2.    chemical properties
  3.    bonding
  4.    bond strength
 Discuss Question
Answer: Option A. -> physical properties
Answer: (a).physical properties

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