Question of The Day29-05-2022

Match List - I with List - II.

List - I

List – II

(a) PCl5

 (i) Square pyramidal

(b) SF6

 (ii) Trigonal planar

(c) BrF5

 (iii) Octahedral

(d) BF3

 (iv) Trigonal bipyramidal

Choose the correct answer from the options given below.


Correct Answer : a ) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Explanation :

PCl5 – Phosphorous Pentachloride- It has a trigonal bipyramidal structure in gaseous and liquid phases. The three P-Cl bonds are equivalent while axial bonds are longer. It is used as a chlorinating reagent.

SF6 – Sulphur Hexaflouride- It is a colorless, odorless, man-made gas consisting of one sulphur and 6 fluoride atoms. It is non-flammable with high chemical stability. It has octahedral structure. It is used as an electric insulator and arc suppressant.

BrF5 – Bromine Pentafluoride- It has square pyramidal structure. It is used in oxygen isotope analysis and as a fluorinating agent in the processing of uranium.

BF3 – Boron Trifluoride - Its molecular geometry is Trigonal Planar. The three BF bonds are at 120° in the same plane. It is a colorless gas with a pungent smell. It is toxic.

Hence, option (A) is correct.

This question was asked in Chemistry section of NEET 2021 exam.



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