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MCQs

Total Questions : 425 | Page 3 of 43 pages
Question 21. Value of radii of cation and anion is
  1.    c+ and c-
  2.    a+ and a-
  3.    r+ and r-
  4.    none
 Discuss Question
Answer: Option C. -> r+ and r-
Answer: (c).r+ and r-
Question 22. When atomic radius increases electron affinity
  1.    decreases
  2.    increases
  3.    neutral
  4.    no effect
 Discuss Question
Answer: Option A. -> decreases
Answer: (a).decreases
Question 23. From left to right in a period of periodic table proton number
  1.    decrease
  2.    neutral
  3.    increase
  4.    none
 Discuss Question
Answer: Option C. -> increase
Answer: (c).increase
Question 24. Ionic radius of Cl- ion increases from
  1.    99pm to 181pm
  2.    19pm to 81pm
  3.    81pm to 99pm
  4.    181pm to 199pm
 Discuss Question
Answer: Option A. -> 99pm to 181pm
Answer: (a).99pm to 181pm
Question 25. Electro negativity of fluorine atom is more then
  1.    hydrogen
  2.    oxygen
  3.    nitrogen
  4.    carbon
 Discuss Question
Answer: Option A. -> hydrogen
Answer: (a).hydrogen
Question 26. Increase in atomic radii in a group is due to increase in number of
  1.    neutrons
  2.    electrons
  3.    protons
  4.    shells
 Discuss Question
Answer: Option D. -> shells
Answer: (d).shells
Question 27. Elements having high ionization energies are
  1.    ion
  2.    nonmetals
  3.    metals
  4.    atom
 Discuss Question
Answer: Option B. -> nonmetals
Answer: (b).nonmetals
Question 28. In period from left to right ionization energy is
  1.    increase
  2.    decrease
  3.    remain same
  4.    diminishes
 Discuss Question
Answer: Option A. -> increase
Answer: (a).increase
Question 29. Fluorine is most
  1.    electronegative element
  2.    positive element
  3.    high tendency element
  4.    both a and b
 Discuss Question
Answer: Option A. -> electronegative element
Answer: (a).electronegative element
Question 30. Atomic number of chromium is
  1.    25
  2.    24
  3.    26
  4.    27
 Discuss Question
Answer: Option B. -> 24
Answer: (b).24

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