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Classification of Elements and Periodicity in Properties

JEE Main 2025 (Online) 22nd January Morning ShiftMatchingMedium📈 Topic in 18% papers+4−1
Ques. 1JEE Main 2025, 22 January (Morning Shift)

Match List-I with List-II.

  1. A-IV, B-I, C-II, D-III
  2. A-III, B-IV, C-II, D-I
  3. A-II, B-III, C-IV, D-I
  4. A-IV, B-I, C-III, D-II

Answer

(1) A-IV, B-I, C-II, D-III

Solution

Al3+<Mg2+<Na+<F-: isoelectronic, radius rises as Z falls A-IV

B<C<O<N: IE1 order (N higher than O, half-filled 2p3) B-I

B<Al<Mg<K: metallic character C-II

Si<P<S<Cl: electronegativity D-III

Answer: (1)

Keep practising — Classification of Elements and Periodicity in Properties

Ques. 2JEE Main 2025, 22 January (Morning Shift)

Which of the following electronegativity order is incorrect?

  1. S<Cl<O<F
  2. Al<Si<C<N
  3. Al<Mg<B<N
  4. Mg<Be<B<N
Ques. 3JEE Main 2025, 22 January (Evening Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are false
  2. Both Statement I and Statement II are true
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true

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