PYQSide ExamsMy practice

Chemical Bonding and Molecular Structure · Question 103

AIPMT 2001MCQMedium📈 Topic in 75% papers+4−1
1

Which of the following two are isostructural?

  1. XeF2, IF2-
  2. NH3, BF3
  3. CO32-, SO32-
  4. PCl5, ICl5

Answer

(1) XeF2, IF2-

Solution

XeF2: 2 bond pairs + 3 lone pairs ⇒ sp3d, linear.

IF2-: 2 bond pairs + 3 lone pairs ⇒ sp3d, linear.

NH3 is trigonal pyramidal (sp3, 1 lone pair) but BF3 is trigonal planar (sp2).

CO32- is trigonal planar (sp2) but SO32- is pyramidal (sp3, 1 lone pair).

PCl5 is trigonal bipyramidal (sp3d) but ICl5 is square pyramidal (sp3d2, 1 lone pair).

∴ XeF2 and IF2- are isostructural (both linear).

Answer: (1)

AIPMT 2001

Keep practising — Chemical Bonding and Molecular Structure

2

In which of the following bond angle is maximum ?

  1. NH3
  2. NH4+
  3. PCl3
  4. SCl2
AIPMT 2001
3

In X-H Y, X and Y both are electronegative elements. Then

  1. electron density on X will increase and on H will decrease
  2. in both electron density will increase
  3. in both electron density will decrease
  4. on X electron density will decrease and on H will increase.
AIPMT 2001
4

d - p bond present in

  1. CO32-
  2. PO43-
  3. NO3-
  4. NO2-
AIPMT 2000
5

Right order of dissociation energy N2 and N2+ is

  1. N2 > N2+
  2. N2 = N2+
  3. N2+ > N2
  4. none
AIPMT 2000
6

Which species does not exhibit paramagnetism?

  1. N2+
  2. O2-
  3. CO
  4. NO
AIPMT 2000
7

Which compound forms linear polymer due to H-bond?

  1. H2O
  2. NH3
  3. HF
  4. HCl
Out of syllabusAIPMT 2000

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