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Periodic Table, Periodic Properties and Variations of Properties — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryPeriodic Table, Periodic Properties and Variations of Properties1 Mark
MCQ
Assertion : The elements of the different group have similar chemical properties.
Reason : It is because they have same number of valence electrons.
  • ✓
    Assertion and Reason both are correct statements and reason is the correct explanation of the assertion.
  • B
    Assertion and Reason both are correct statements, but reason is not the correct explanation of the assertion.
  • C
    Assertion is true, but reason is false.
  • D
    Assertion is false, but reason is true.
✓

Answer

Correct option: A.
Assertion and Reason both are correct statements and reason is the correct explanation of the assertion.
(a) Assertion and Reason both are correct statements and reason is the correct explanation of the assertion.
Explanation : The elements of the same group have similar chemical properties because of the presence of same number of valence electrons. Thus, assertion is false but reason is true.

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