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PERIODIC CLASSIFICATION OF ELEMENTS MCQs

Total Questions : 24 | Page 3 of 3 pages
Question 21. In the second period of periodic table____________ has the largest size
  1.    Lithium
  2.    Both
  3.    Li
  4.    All of above
 Discuss Question
Answer: Option B. -> Both
Question 22. The chemical properties of calcium (20 Ca) are similar to those of
  1.    19K
  2.    12Mg
  3.    25Mn
  4.    3Li
 Discuss Question
Answer: Option B. -> 12Mg
Question 23. Select the correct arrangement of following elements in doberieners triads Sr, K, Ca, Br, Na, Ba, Cl, I, Li
  1.    i) Li Sr K ii) Ca Na Ba iii) Cl Br I
  2.    i) Li Na K ii) Ca Sr I iii) Cl Br Ba
  3.    i) Li Na K ii) Ca Sr Ba iii) Cl Br I
  4.    i) Ca Na K ii) Li Sr Ba iii) Cl Br I
 Discuss Question
Answer: Option C. -> i) Li Na K ii) Ca Sr Ba iii) Cl Br I
Question 24. Pick out the chemically most reactive elements from the given triads
  1.    Li and F
  2.    Li and Br
  3.    K and F
  4.    K and Br
 Discuss Question
Answer: Option C. -> K and F

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