PYQSide ExamsMy practice

Chemical Bonding and Molecular Structure · Question 31

NEET 2017MCQEasy📈 Topic in 75% papers+4−1
1

The species, having bond angles of 120 is

  1. ClF3
  2. NCl3
  3. BCl3
  4. PH3

Answer

(3) BCl3

Solution

ClF3: 3 bp + 2 lp ⇒ T-shaped, bond angle ≈ 87.5

NCl3: 3 bp + 1 lp ⇒ pyramidal, bond angle ≈ 107

BCl3: 3 bp + 0 lp (sp2) ⇒ trigonal planar, bond angle = 120

PH3: 3 bp + 1 lp ⇒ pyramidal, bond angle ≈ 93.6

Answer: (3)

NEET 2017

Keep practising — Chemical Bonding and Molecular Structure

2

Which one of the following pairs of species have the same bond order ?

  1. O2, NO+
  2. CN-, CO
  3. N2, O2-
  4. CO, NO
NEET 2017
3

Consider the molecules CH4, NH3 and H2O. Which of the given statements is false?

  1. The H-O-H bond angle in H2O is smaller than the H-N-H bond angle in NH3.
  2. The H-C-H bond angle in CH4 is larger than the H-N-H bond angle in NH3.
  3. The H-C-H bond angle in CH4, the H-N-H bond angle in NH3, and the H-O-H bond angle in H2O are all greater than 90 .
  4. The H-O-H bond angle in H2O is larger than the H-C-H bond angle in CH4.
NEET 2016 (Phase 1)
4

Predict the correct order among the following :

  1. bond pair - bond pair > lone pair - bond pair > lone pair - lone pair
  2. lone pair - bond pair > bond pair - bond pair > lone pair - lone pair
  3. lone pair - lone pair > lone pair - bond pair > bond pair - bond pair
  4. lone pair - lone pair > bond pair - bond pair > lone pair - bond pair
NEET 2016 (Phase 1)
5

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

  1. H2O2
  2. HCN
  3. Cellulose
  4. Concentrated acetic acid
NEET 2016 (Phase 2)
6

The hybridizations of atomic orbitals of nitrogen in NO2+, NO3- and NH4+ respectively are

  1. sp, sp3 and sp2
  2. sp2, sp3 and sp
  3. sp, sp2 and sp3
  4. sp2, sp and sp3
NEET 2016 (Phase 2)
7

Which of the following pairs of ions is isoelectronic and isostructural?

  1. CO32-, NO3-
  2. ClO3-, CO32-
  3. SO32-, NO3-
  4. ClO3-, SO32-
NEET 2016 (Phase 2)
8

The correct geometry and hybridization for XeF4 are

  1. octahedral, sp3d2
  2. trigonal bipyramidal, sp3d
  3. planar triangle, sp3d3
  4. square planar, sp3d2
NEET 2016 (Phase 2)
9

Among the following, which one is a wrong statement ?

  1. PH5 and BiCl5 do not exist.
  2. p -d bonds are present in SO2.
  3. SeF4 and CH4 have same shape.
  4. I3+ has bent geometry.
NEET 2016 (Phase 2)
10

In which of the following pairs, both the species are not isostructural ?

  1. Diamond, Silicon carbide
  2. NH3, PH3
  3. XeF4, XeO4
  4. SiCl4, PCl4+
AIPMT 2015
11

Decreasing order of stability of O2, O2-, O2+ and O22- is

  1. O22- > O2- > O2 > O2+
  2. O2 > O2+ > O22- > O2-
  3. O2- > O22- > O2+ > O2
  4. O2+ > O2 > O2- > O22-
AIPMT 2015

All Chemical Bonding and Molecular Structure PYQs →

PDFDownload Chemical Bonding and Molecular Structure PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Chemistry chapters
Physical ChemistrySome Basic Concepts of ChemistryStructure of AtomStates of MatterThermodynamicsEquilibriumRedox ReactionsSolid StateSolutionsElectrochemistryChemical KineticsSurface Chemistry
Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular StructureHydrogens-Block Elementsp-Block Elements (Group 13 & 14)Environmental ChemistryGeneral Principles of Isolation of Elementsp-Block Elements (Group 15–18)d- and f-Block ElementsCoordination Compounds
Organic ChemistryOrganic Chemistry – Some Basic Principles and TechniquesIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomoleculesPolymersChemistry in Everyday LifePrinciples Related to Practical Chemistry