PYQSide ExamsMy practice

Classification of Elements and Periodicity in Properties · Question 34

AIPMT 2006MCQEasy📈 Topic in 0% papers+4−1
1

Which of the following is the most basic oxide?

  1. SeO2
  2. Al2O3
  3. Sb2O3
  4. Bi2O3

Answer

(4) Bi2O3

Solution

As per NCERT, metallic character (and so the basic nature of oxides) increases down a group and decreases across a period.

SeO2: Se is a non-metal ⇒ acidic oxide.

Al2O3: amphoteric oxide.

Sb2O3: amphoteric oxide (Sb is a metalloid).

Bi2O3: Bi is the most metallic element of group 15 ⇒ predominantly basic oxide.

∴ Bi2O3 is the most basic.

Answer: (4)

AIPMT 2006

Keep practising — Classification of Elements and Periodicity in Properties

2

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species ?

  1. S < O < Cl < F
  2. Cl < F < S < O
  3. F < Cl < O < S
  4. O < S < F < Cl
AIPMT 2005
3

A nuclide of an alkaline earth metal undergoes radioactive decay by emission of three -particles in succession. The group of the periodic table to which the resulting daughter element would belong is

  1. Gr. 13
  2. Gr. 17
  3. Gr. 14
  4. Gr. 16
AIPMT 2005
4

Ionic radii are

  1. inversely proportional to effective nuclear charge
  2. inversely proportional to square of effective nuclear charge
  3. directly proportional to effective nuclear charge
  4. directly proportional to square of effective nuclear charge.
AIPMT 2004
5

The ions O2-, F-, Na+, Mg2+ and Al3+ are isoelectronic. Their ionic radii show

  1. a significant increase from O2- to Al3+
  2. a significant decrease from O2- to Al3+
  3. an increase from O2- to F- and then decrease from Na+ to Al3+
  4. a decrease from O2- to F- and then increase from Na+ to Al3+
AIPMT 2003
6

Which of the following is isoelectronic?

  1. CO2, NO2
  2. NO2-, CO2
  3. CN-, CO
  4. SO2, CO2
AIPMT 2002
7

Which of the following order is wrong?

  1. NH3 < PH3 < AsH3 – acidic
  2. Li < Be < B < C – 1st IP
  3. Al2O3 < MgO < Na2O < K2O – basic
  4. Li+ < Na+ < K+ < Cs+ – ionic radius
AIPMT 2002
8

An atom has electronic configuration 1s2 2s2 2p6 3s2 3p6 3d3 4s2, you will place it in which group?

  1. fifth
  2. fifteenth
  3. second
  4. third
AIPMT 2002
9

Correct order of 1st ionization potential among following elements Be, B, C, N, O is

  1. B < Be < C < O < N
  2. B < Be < C < N < O
  3. Be < B < C < N < O
  4. Be < B < C < O < N
AIPMT 2001

All Classification of Elements and Periodicity in Properties PYQs →

PDFDownload Classification of Elements and Periodicity in Properties 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