JEE Mains · Chemistry · STD 12 - p -Block elements - ll
Given below are two statements:
Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent radius in its group.
Statement II: A group 15 element's hydride \(EH_{3}\) has the lowest boiling point among corresponding hydrides of other group 15 elements. The maximum covalency of that element E is 4.
In the light of the above statements, choose the correct answer from the options given below.
- A Both Statement I and Statement II are true.
- B Statement I is false but Statement II is true.
- C Both Statement I and Statement II are false.
- D Statement I is true but Statement II is false.
Answer & Solution
Correct Answer
(C) Both Statement I and Statement II are false.
Step-by-step Solution
Detailed explanation
\(HF < HCl < HBr < HI\) (bond length order) \(F < Cl < Br < I\) (radius order) \(PH _3< AsH _3< NH _3< SbH _3< BiH _3\) (Boiling point order) Maximum possible covalency of phosphorous is 6
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