Atomos Test Generator Free PYQs ExamsMy practice Log in / Sign up free

p-Block Elements (Group 15–18)

NEET 2013 (Karnataka)MCQMedium📈 Topic in 12% papers+4−1
Ques. 1NEET 2013 (Karnataka)

Identify the incorrect statement, regarding the molecule XeO4:

  1. XeO4 molecule is square planar.
  2. There are four p -d bonds.
  3. There are four sp3-p, bonds.
  4. XeO4 molecule is tetrahedral.

Answer

(1) XeO4 molecule is square planar.

Solution

In XeO4, Xe (oxidation state +8) forms four σ bonds and has no lone pair.

⇒ Hybridisation of Xe = sp3 ⇒ shape is tetrahedral (statement 4 correct).

Four σ bonds are formed by overlap of Xe sp3 hybrid orbitals with p orbitals of O ⇒ four sp3-p σ bonds (statement 3 correct).

The four π bonds are formed by sideways overlap of p orbitals of O with d orbitals of Xe ⇒ four p -d bonds (statement 2 correct).

∴ "XeO4 molecule is square planar" is incorrect.

Answer: (1)

Keep practising — p-Block Elements (Group 15–18)

Ques. 2AIPMT 2012 (Mains)

In which of the following arrangements the given sequence is not strictly according to the property indicated against it?

  1. HF < HCl < HBr < HI : increasing acidic strength
  2. H2O < H2S < H2Se < H2Te : increasing pKa values
  3. NH3 < PH3 < AsH3 < SbH3 : increasing acidic character
  4. CO2 < SiO2 < SnO2 < PbO2 : increasing oxidising power
Ques. 3AIPMT 2012 (Prelims)

Which of the following statements is not valid for oxoacids of phosphorus?

  1. Orthophosphoric acid is used in the manufacture of triple superphosphate.
  2. Hypophosphorous acid is a diprotic acid.
  3. All oxoacids contain tetrahedral four coordinated phosphorus.
  4. All oxoacids contain at least one P=O unit and one P-OH group.
Ques. 4AIPMT 2012 (Prelims)

Sulphur trioxide can be obtained by which of the following reactions?

  1. CaSO4 + C
  2. Fe2(SO4)3
  3. S + H2SO4
  4. H2SO4 + PCl5
Ques. 5AIPMT 2010 (Mains)

How many bridging oxygen atoms are present in P4O10?

  1. 6
  2. 4
  3. 2
  4. 5
Ques. 6AIPMT 2010 (Mains)

Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option.

  1. (A) (i); (B) (iv); (C) (ii); (D) (iii)
  2. (A) (i); (B) (ii); (C) (iii); (D) (iv)
  3. (A) (iv); (B) (iii); (C) (ii); (D) (i)
  4. (A) (iv); (B) (ii); (C) (iii); (D) (i)
Ques. 7AIPMT 2010 (Prelims)

Oxidation states of P in H4P2O5, H4P2O6, H4P2O7 are respectively

  1. +3, +5, +4
  2. +5, +3, +4
  3. +5, +4, +3
  4. +3, +4, +5
Ques. 8AIPMT 2009

Among the following which is the strongest oxidising agent?

  1. Br2
  2. I2
  3. Cl2
  4. F2
Ques. 9AIPMT 2008

Which of the following arrangements do not give the correct picture of the trends indicated against them?

  1. F2 > Cl2 > Br2 > I2 : Bond dissociation energy
  2. F2 > Cl2 > Br2 > I2 : Electronegativity
  3. F2 > Cl2 > Br2 > I2 : Oxidizing power
  4. F2 > Cl2 > Br2 > I2 : Electron gain enthalpy
Ques. 10AIPMT 2007

Which one of the following orders correctly represents the increasing acid strengths of the given acids?

  1. HOClO < HOCl < HOClO3 < HOClO2
  2. HOClO2 < HOClO3 < HOClO < HOCl
  3. HOClO3 < HOClO2 < HOClO < HOCl
  4. HOCl < HOClO < HOClO2 < HOClO3
Ques. 11AIPMT 2006

Which one of the following orders is not in accordance with the property stated against it ?

  1. F2 > Cl2 > Br2 > I2 : Bond dissociation energy
  2. F2 > Cl2 > Br2 > I2 : Oxidising power
  3. HI > HBr > HCl > HF : Acidic property in water
  4. F2 > Cl2 > Br2 > I2 : Electronegativity

All p-Block Elements (Group 15–18) PYQs →

PDFDownload p-Block Elements (Group 15–18) 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