Periodic Classification Mcqs

Our collections of Multiple choice questions and answers focuses on study of Periodic Classification in Chemistry. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate Periodic Classification in Chemistry comprehensively.

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33.
The atoms of same element having same atomic number but different mass number are called

Isobars

Isomers

Isotopes

Isotropes

36.
Ionization energy depends upon

Nuclear charge

Atomic size

Shielding effect

I.E depends upon all of the above and nature of orbital

37.
Shielding effect across the period

Increases

Decreases

Can not be predicted

Remains constant

38.
Addition of 2nd electron to a uninegative ion is always

Exothermic

Endothermic

Data is insufficient

Unpredictable

39.
Higher value of electron affinity means

Atom will lose electron easily

Atom will gain electron easily

Atom may form di-positive ion

The reason is unknown

40.
Metallic characters of alkali metals

Increase down the group

Decrease down the group

No regular trend

Remain same

41.
Melting points of VII-A group elements down the group

Increase

Decrease

Remain constant

No regular trend

42.
Oxidation state of an atom represents

Number of electrons gained

Number of electrons lost

Apparent charge in compound

Its vacancies

44.
Halides in which halogen atoms act as a bridge between two atoms of the other element are called

Covalent halides

Electronegative halides

Polymeric halides

Polymeric hydrides

45.
Less electronegative elements such as Be Ga A? etc form

Polymeric halide

Covalent halide

Ionic halide

All

46.
Iodine is solid due to

Strong covalent bond

Large value of dipole moment

High polarizability

Strong hydrogen bonding

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