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Assertion :Bond dissociation energy of F2 molecule is less than that of Cl2 molecule. Reason: Due to inter-electronic repulsion between F atom ,F---F bond length in F2 molecule is higher than Cl--Cl bond length in Cl2 molecule

Read the above assertion and reason and choose the correct option regarding it.

  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
  3. Assertion is correct but Reason is incorrect
  4. Both Assertion and Reason are incorrect

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Both Assertion and Reason are incorrect
Solution
Verified by Toppr

Bond dissociation energy of F2 molecule is less than that of Cl2 molecule because F has smaller radius and due to smaller size repulsion is high.
Both have 3 lone pairs but in the case of chlorine the lone pairs have more space to be in, leading to a lower stress on the bond. In flourine however the lone pairs have less space to be in, adding stress on the bond making its easier to break.

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Similar Questions
Q1
Assertion :Bond dissociation energy of F2 molecule is less than that of Cl2 molecule. Reason: Due to inter-electronic repulsion between F atom ,F---F bond length in F2 molecule is higher than Cl--Cl bond length in Cl2 molecule

Read the above assertion and reason and choose the correct option regarding it.

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Q2

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
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(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Q3
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Q4
Assertion : In the bonding molecular orbital (MO) of H2, the electron density is increased between the nuclei.
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Q5
Read the assertion and reason carefully to mark the correct option out of the options given below:
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c) If assertion is true but reason is false.
(d) If assertion is false but reason is true.
Assertion: Fluorine is stronger oxidizing agent than chlorine
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