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NEET Exam  >  NEET Tests  >  Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - NEET MCQ

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - NEET MCQ


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15 Questions MCQ Test - Test: The Valence Shell Electron Pair Repulsion Theory (NCERT)

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) for NEET 2024 is part of NEET preparation. The Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) below.
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Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 1
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According to VSEPR theory

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The pairs of electrons tend to occupy such positions that place them farthest from each other and minimise repulsions.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 2
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In a bonded molecule, the order of repulsion between the bonded and non-bonded electrons is

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Lone pair-lone pair lp - lp repulsions are considered stronger than lone pair-bonding pair lp - bp repulsions, which in turn are considered stronger than bonding pairbonding pair bp - bp repulsions, This is because the lone pair of electrons are attracted towards single nuclei only whereas bond pair electrons are attracted towards two nuclei. Thus the strength of the lone pair-lone pair repulsion is supposed to be more than bond pair-bond pair or bond pair-lone pair repulsion.

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Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 3
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The shape of water molecule which should be tetrahedral has a bent or distorted tetrahedral shape with a bond angle 104.5°. What could be the reason for this?

Detailed Solution for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 3

Due to presence of lone pairs, the repulsion is more which changes the bond angle to 104.5°.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 4
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Which of the following shapes of SF4 is more stable and why?
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In structure (ii), Ip-bp repulsions are minimum.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 5
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The most stable shape of ClF3 is shown by
Detailed Solution for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 5

In (i), the Ip are atequatorial position so there are less Ip - bp repulsions as compared to other positions.

Hence, T-shape is moststable.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 6
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In which of the following molecules the central atomdoes not retain any lone pair of electrons?
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In all other molecules, N and O retain lone pair
of electrons.

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Few examples of the compounds formed by chemical bonding are given below. Mark the incorrect example.
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The correct example is H2O. NH3 is pyramidal and bond angle is 104.50.

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Which of the following statements is correct regarding the structure of PCI5?
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In PCI5, three axial and two equatorial bonds are present.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 9
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Match the molecules given in column I with their shapes given in column II and mark the appropriate choice
Detailed Solution for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 9

(A) SF6 −  Octahedral

(B) SiCl4 − Tetrahedral

(C) AsF5 − Trigonal bipyramidal

(D) BCl3− Trigonal planar

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 10
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What is common between the following molecules

SO3, CO2-3, No-3
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All the moleculeshave trigonal planar structure.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 11
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Which molecule is depicted by the given ball and stick models?
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BF3 - Trigonal planar with bond angle 120º.
PCI5 - Trigonal bipyramidal with bond angles 120º and 90º.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 12
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Which of the following does not show octahedral geometry?
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SF4 has trigonal bipyramidal geometry. SF6, IF5, and SiF62- have octahedral geometry.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 13
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Given below is the table showing shapes of some molecules having lone pairs of electrons. Fill up the blanks left in it.
Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 14
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The BCI3 is a planar molecule whereas NCI3 is pyramidal, because
Detailed Solution for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 14

No lone pair ofelectrons is available in BCI3

One lone pair of electrons is available on N atom, occupies a corner in the tetrahedral arrangement. Therefore, NCI3 appears pyramidal in shape.

Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 15
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CF4, SF4 and XeF4 contain the following electronicstructure on their central atoms. Which one iscorrect option?
Detailed Solution for Test: The Valence Shell Electron Pair Repulsion Theory (NCERT) - Question 15

CF4−sp3 , tetrahedral but no unpaired electron.

SF4−sp3d, trigonal bipyramidal with one unpaired electron.


XeF4−sp3d2, square planar, two lone pairs of electrons.

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