Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: D and F Block Elements

Question:

Statement I: Phosphorous chlorides (tri and penta) are preferred over thionyl chloride for the preparation of alkyl chlorides from alcohols

Statement II: Phosphorous chlorides give pure alkyl halides

Options:

Both statement I and statement II are correct and statement II is the correct explanation of statement I

Both statement I and statement II are correct but statement II is not the correct explanation of statement I

Statement I is correct but statement II is false

Both statement I and Statement II are incorrect

Correct Answer:

Both statement I and Statement II are incorrect

Explanation:

The answer is option 4. Both statement I and Statement II are incorrect.

Correct Statement I: Thionyl chloride is preferred over \(PCl_3\) and \(PCl_5\) for the preparation of alkyl chłorides from alcohols.

Correct Statement II:  Thionyl chloride gives pure alkyl halide as other two products \((SO_2 + HCl)\)are escapable gases.