Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: P Block Elements

Question:

In each of the following question, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R). Choose the correct answer as:

Assertion (A): The O—O bond length in H2O2 is shorter than that of O2F2.

Reason (R):  H2O2 is an ionic compound.

Options:

If both assertion and reason are true, and reason is the correct explanation of the assertion.

If both assertion and reason are true, but the reason is not the correct explanation of the assertion.

If the assertion is true, but the reason is false

If both assertion and reason are false.

Correct Answer:

If both assertion and reason are false.

Explanation:

The correct answer is option 4. If both assertion and reason are false.

Assertion (A):The \(O—O\) bond length in \(H_2O_2\) is shorter than that of \(O_2F_2\).

This statement is false. In reality, the \(O—O\) bond length in \(H_2O_2\) (Hydrogen Peroxide) is longer than that in \(O_2F_2\) (dioxygen difluoride). This is because in \(H_2O_2\), the oxygen atoms are connected by a single covalent bond, which is longer than the \(O=O\) double bond in \(O_2F_2\).

2. Reason (R): \(H_2O_2\) is an ionic compound.

This statement is false as well. \(H_2O_2\) is not an ionic compound; it is a covalent compound. In \(H_2O_2\), the oxygen atoms are bonded together by a covalent bond, where they share electrons.

So, both the assertion and the reason provided are incorrect. The correct explanation is that \(H_2O_2\) is a covalent compound, and the \(O—O\) bond length in \(H_2O_2\) is longer than that of \(O_2F_2\). Thus, the correct option is "If both assertion and reason are false."