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MCQs

Total Questions : 526 | Page 52 of 53 pages
Question 511. KBr has value of lattice energy in kilo joule per mole and value is
  1.    −789
  2.    −690
  3.    −665
  4.    −900
 Discuss Question
Answer: Option C. -> −665
Answer: (c).−665
Question 512. Energy change is called as enthalpy change, when it occurs at
  1.    varied pressure
  2.    constant volume
  3.    varied volume
  4.    constant pressure
 Discuss Question
Answer: Option D. -> constant pressure
Answer: (d).constant pressure
Question 513. Blockages in veins can be detected by use of
  1.    skin thermography
  2.    liver thermography
  3.    environment thermography
  4.    all of these
 Discuss Question
Answer: Option A. -> skin thermography
Answer: (a).skin thermography
Question 514. Electrical and thermal properties for some crystalline solids depend upon
  1.    surface
  2.    area
  3.    direction
  4.    density
 Discuss Question
Answer: Option C. -> direction
Answer: (c).direction
Question 515. Usual habit of crystals of ice is
  1.    cubic
  2.    monoclinic
  3.    hexagonal
  4.    rhombic
 Discuss Question
Answer: Option C. -> hexagonal
Answer: (c).hexagonal
Question 516. London forces strength is affected by
  1.    shape of molecules
  2.    strength of electronic cloud
  3.    density of molecules
  4.    volume of molecules
 Discuss Question
Answer: Option B. -> strength of electronic cloud
Answer: (b).strength of electronic cloud
Question 517. Appearance of structure of iodine is in form of
  1.    cube lattice
  2.    layer lattice
  3.    compact lattice
  4.    hexagonal lattice
 Discuss Question
Answer: Option B. -> layer lattice
Answer: (b).layer lattice
Question 518. Breaking along definite planes is a characteristic of
  1.    amorphous solids
  2.    crystalline solids
  3.    virtual sides
  4.    irregular solids
 Discuss Question
Answer: Option B. -> crystalline solids
Answer: (b).crystalline solids
Question 519. Mass of ionic solids is taken as
  1.    molecular mass
  2.    formula mass
  3.    compound mass
  4.    atomic mass
 Discuss Question
Answer: Option B. -> formula mass
Answer: (b).formula mass
Question 520. Diamond is soluble in
  1.    water
  2.    carbon tetrachloride
  3.    benzene
  4.    no solvent
 Discuss Question
Answer: Option D. -> no solvent
Answer: (d).no solvent

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