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NEET CHEMISTRYP Block ElementsMedium

Question

The incorrect statement among the following is:

A

SnF4 is ionic in nature.

B

PbF4 is covalent in nature.

C

SiCl4 is easily hydrolysed.

D

GeX4 (X = F, Cl, Br, I) is more stable than GeX2

Step-by-Step Solution

Most of the tetrahalides of group 14 elements are covalent in nature. However, exceptions exist with the highly electronegative fluorine atom. Both SnF4 and PbF4 are ionic in nature, not covalent. Hence, the statement 'PbF4 is covalent in nature' is incorrect. Additionally, SiCl4 is easily hydrolysed due to the presence of vacant d-orbitals in the silicon atom which can accept electron pairs from water. For germanium, the +4 oxidation state (GeX4) is more stable than the +2 oxidation state (GeX2) because the inert pair effect is not yet dominant (it becomes significant mainly in heavier elements like Sn and Pb).

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from P Block Elements. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYP Block Elementsincorrectstatementfollowing

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