Periodic Classification of Elements and Periodicity - Set 1

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Periodic Classification of Elements and Periodicity - Set 1

MM

Mashaal Masha

Oct 20, 2022

Choose the correct options for the following questions.

Keeping in view the size of atoms, which order is the correct one?

Difficulty: Easy

A:

Mg > Sr

B:

Ba > Mg

C:

Lu > Ce

D:

CI > I

Mark the correct statement:

Difficulty: Easy

A:

$Na^{+}$ is smaller than Na atom

B:

$Na^{+}$ is larger than Na atom

C:

Which statement is incorrect?

D:

$Cl^{-}$ (ion) and Cl (atom) are equal in size

Mark the correct statement:

Difficulty: Easy

A:

All lanthanides are present in the same group

B:

All halogens are present in the same period

C:

All the alkali metals are preset in the same group

D:

All the noble gases are present in the same period

Which statement is incorrect?

Difficulty: Easy

A:

All the metals are good conductor of electricity

B:

All the metals are good conductor of heat

C:

All the metals form positive ion

D:

All the metals form acidic oxides

Which statement is incorrect?

Difficulty: Easy

A:

Hydrogen resembles in properties with I-A, IV-A and V-A elements.

B:

Hydrogen resembles in properties with II-A, IV-A and V-A elements.

C:

Hydrogen resembles in properties with II-A, IV-A and VI-A elements.

D:

Hydrogen resembles in properties with II-A, III-A and VII-A elements.

Mark the correct statement:

Difficulty: Easy

A:

The ionization energy of calcium is lower than that of barium.

B:

The ionization energy of calcium is lower than that of magnesium.

C:

The ionization energy of calcium is higher than that of beryllium.

D:

The ionization energy of calcium is lower than that of strontium.

Mark the correct statement:

Difficulty: Easy

A:

Electron affinity is a measure of energy required to remove the electron.

B:

Ionization energy is a measure of energy asked by removing an electron

C:

Electron affinity is a measure of energy required to excite an electron.

D:

Electron affinity is a measure of energy released by removing an electron.

Mark the incorrect statement

Difficulty: Easy

A:

Metallic character increases down the group.

B:

Metallic character increases along a period.

C:

Metallic character decreases along a period.

D:

Metallic character remains the same down the group.

Mark the correct statement:

Difficulty: Easy

A:

Covalent character of metal halides increases from left to right in a period.

B:

Boiling points of Group IV-A hydrides decrease down the group.

C:

Ionic character of hydrides increases from left to right in a period.

D:

The basicity of group II-A oxides decreases on descending the group.

Modern Periodic Table is based upon periodic function:

Difficulty: Easy

A:

Atomic mass

B:

Mass number

C:

Nuclide number

D:

Atomic number