Test: Periodic Properties- 2

Question 1

Incorrect order of ionic size is:

Accepted Answer

La³⁺ > Gd³⁺ > Eu³⁺ > Lu³⁺

Answer

V²⁺ > V³⁺ > V⁴⁺ > V⁵⁺

Answer

Tl⁺ > In⁺ > Sn²⁺ > Sb³⁺

Answer

K⁺ > Sc³⁺ > V⁵⁺ > Mn⁷⁺

Question 2

Among NaF , NaCl , NaBr and Nal , the NaF has highest melting point because

Accepted Answer

It has maximum ionic character

Answer

It has minimum ionic character

Answer

It has associated molecules

Answer

It has least molecular weight

Question 3

Consider the following changes:
M (s) → M (g) ........(1)
M (s) → M²⁺ (g) + 2e^- .......(2)
M (g) → M⁺ (g) + 2e^- .......(3)
M⁺ (g) → M²⁺ (g) + e^- .......(4)
M (g) → M²⁺ (g) + 2e^- .......(5)

The second ionization energy of M could be calculated from the energy values associated with:

Accepted Answer

5 &ndash; 3

Answer

1 + 3 + 4

Answer

2 – 1 + 3

Answer

1 + 5

Question 4

The correct order of second I. E. of C, N, O and F are in the order:

Accepted Answer

O > F > N > C

Answer

F > O > N > C

Answer

C > N > O > F

Answer

O > N > F > C

Question 5

Which is the correct order of ionization energies?

Accepted Answer

F > Cl > Cl^– > F^–

Answer

F^– > F > Cl^– > Cl

Answer

F^– > Cl^– > Cl > F

Answer

F^– > Cl^– > F > Cl

Question 6

Which of the following statements is incorrect:

Accepted Answer

The third ionization energy of phosphorus is greater than that of aluminium

Answer

The second ionization energy of sulphur is greater than that of chlorine

Answer

The first ionization energy of aluminium is approximately the same as that of gallium

Answer

The second ionization energy of boron is greater than that of carbon.

Question 7

First ionization energy is the lowest with:

Accepted Answer

Tin

Answer

Lead

Answer

Carbon

Answer

Silicon

Question 8

The incorrect statement among the following is:

Accepted Answer

The second ionization potential of Mg is greater than the second ionization potential of Na

Answer

The first ionization potential of Al is less than the first ionization potential of Mg

Answer

The first ionization potential of Na is less than the first ionization potential of Mg

Answer

The third ionization of potential Mg is greater than the third ionization potential of Al

Question 9

The correct values of ionization enthalpies (in kJ mol^–1) of Si, P, Cl and S respectively are:

Accepted Answer

786, 1012, 1256, 999

Answer

786, 1012, 999, 1256

Answer

1012, 786, 999, 1256

Answer

786, 999, 1012, 1256

Question 10

The third ionization energy is maximum for:

Accepted Answer

Boron

Answer

Nitrogen

Answer

Phosphorus

Answer

Aluminium

Question 11

Consider the following changes
A → A⁺ + e^- : E1
and A⁺ → A2⁺ + e^- ; E2
The energy required to pull out the two electrons are E₁ and E₂ respectively. The correct relationship between two energies would be...

Accepted Answer

E1 < E2 &#8203;

Answer

E₁ = E₂

Answer

E1 > E2 &#8203;

Answer

E₁ ≥ E₂

Question 12

The incorrect statement is:

Accepted Answer

Helogens have highest I.E. in respective period

Answer

The second ionization energy of Se is greater than that of second ionization energy of As

Answer

The first ionizat ion energy of C²⁺ ion is greater than that of first ionizat ion energy of N²⁺ ion.

Answer

The third ionizat ion energy of F is greater than that of third ionization energy of O

Question 13

First the ionization energies (in kJ/mol) of three representative elements are given below:

Then incorrect option is:

Accepted Answer

R: s-block element

Answer

Q: Alkaline earth metal

Answer

P: Alkali metals

Answer

They belong to same period

Question 14

Which of the following statement is correct regarding following process:

Accepted Answer

| I.E. of process (II) | = | E.A. of process (I) |

Answer

| I.E. of process (III) | = | I.E. of process (II) |

Answer

| I.E. of process (IV) | = | E.A. of process (I) |

Answer

| I.E. of process (IV) | = | I.E. of process (III) |

Question 15

The correct order of increasing electron affinity of the following elements is:

Accepted Answer

O < S < F < Cl

Answer

O < S < Cl < F

Answer

S < O < F < Cl

Answer

S < O < Cl < F

Question 16

The second electron gain enthalpies (in kJ mol^–1) of oxygen and sulphur respectively are:

Accepted Answer

+780, +590

Answer

–780, + 590

Answer

–590, + 780

Answer

+590, + 780

Question 17

Which of the following statements is correct:

Accepted Answer

The magnitude of the second electron affinity of sulphur is less than that of oxygen

Answer

The magnitude of the second electron affinity of sulphur is greater than that of oxygen

Answer

The first electron affinities of bromine and iodine are approximately the same

Answer

The first electron affinit ies of fluorine is greater than that of chlorine

Question 18

Which one of the following statements is incorrect:

Accepted Answer

Electron gain enthalpy decreases from fluorine to iodine in the group

Answer

Greater is the nuclear charge, greater is the electron gain enthalpy

Answer

Nitrogen has almost zero electron gain enthalpy

Answer

Chlorine has highest electron gain enthalpy

Question 19

The formation of the oxide ion O^2–(g) requires first an exothermic and then an endothermic step as shown below:

This is because:

Accepted Answer

O^– ion will tend to resist the addition of another electron

Answer

O^– ion has comparat ively larger size than oxygen atom

Answer

Oxygen has high electron affinity

Answer

Oxygen is more electronegative

Question 20

Identify the wrong sequence of the elements in a group

Accepted Answer

Cu, Au, Ag

Answer

Ca, Sr, Ba

Answer

N,P, As

Answer

Cl, Br, I

Question 21

The electron affinity of the following elements can be arranged:

Accepted Answer

Cl > O > C > N

Answer

Cl > O > N > C

Answer

Cl > N > C > O

Answer

Cl > C > O > N

Question 22

In which of the following arrangements, the order is not correct according to the property indicated against it:

Accepted Answer

Increasing I.E.₁: B < C < N < O

Answer

Increasing size: Al³⁺ < Mg²⁺ < Na⁺ < F^–

Answer

Increasing E.A₁: I < Br < F < Cl

Answer

Increasing metallic radius: Li < Na < K < Rb

Question 23

Which of the following statements is/are wrong:

Accepted Answer

All isoelectronic ions belong to same period of the periodic table

Answer

Van der Waals radius of iodine is more than its covalent radius

Answer

I.E₁ of N is higher than that of O while I.E₂ of O is higher than that of N

Answer

The electron affinity N is almost zero while that of P is 74.3 kJ mol^–1

Question 24

Consider the following conversions:

That according to given informat ion the incorrect statement is:

Accepted Answer

ΔH₁, and ΔH₃ are negative whereas ΔH₂ and ΔH₄ are positive

Answer

ΔH₃ is more negative than ΔH₁ and ΔH₂

Answer

ΔH₁ is less negative than ΔH₂

Answer

ΔH₁, ΔH₂ and ΔH₃ are negative whereas ΔH₄ is positive

Question 25

The incorrect statement regarding given information is

Accepted Answer

WX conducts electricity only in fused state

Answer

WZ does not conduct electricity in solid and fused state

Answer

YZ conducts electricity in fused as well as solution state

Answer

XZ conducts electricity only in solution state

Question 26

In the compound M—O—H, the M—O bond will be broken if:

Accepted Answer

Δ (E.N.) of M and O > Δ (E.N.) of O and H

Answer

Δ (E.N.) of M and O < Δ (E.N.) of O and H

Answer

Δ (E.N.) of M and O = Δ (E.N.) of O and H

Answer

Cannot be predicted according Δ (E.N.) data

Question 27

An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.

Accepted Answer

N(7)

Answer

Be (4)

Answer

Ne (10)

Answer

O (8)

Question 28

If the ionization and electron gain enthalpy of an element are 275 and 86 Kcalmol⁻¹ respectively, then the electronegativity of the element on the Mulliken scale is:

Accepted Answer

2.8

Answer

3.16

Answer

0.0

Answer

4.16

Question 29

Consider the following statements: (I) The radius of an anion is larger than that of the parent atom. (II) The ionization energy generally increases with increasing atomic number in a period (III) The electronegativity of an element is the tendency of an isolated atom to attract an electron.Which of the above statements is/are correct:

Accepted Answer

I and II

Answer

I alone

Answer

II alone

Answer

II and III

Question 30

Which of the following order is correct for the property ment ioned in brackets:

Accepted Answer

C < N < F < O (2^nd Ionization energy)

Answer

S^2– > Cl^– > K⁺ > Ca²⁺ (Ionization energy)

Answer

B > Al > Ga > In > Tl (Electronegativity)

Answer

Na⁺ > Li⁺ > Mg²⁺ > Be²⁺ > Al³⁺ (Ionicradius)

Periodic Properties- 2 - Free MCQ Practice Test with solutions, Chemistry

MCQ Practice Test & Solutions: Test: Periodic Properties- 2 (30 Questions)

Incorrect order of ionic size is:

Among NaF , NaCl , NaBr and Nal , the NaF has highest melting point because

The correct order of second I. E. of C, N, O and F are in the order:

Which is the correct order of ionization energies?

Which of the following statements is incorrect:

First ionization energy is the lowest with:

The incorrect statement among the following is:

The correct values of ionization enthalpies (in kJ mol^–1) of Si, P, Cl and S respectively are:

The third ionization energy is maximum for:

Consider the following changes
A → A⁺ + e^- : E1
and A⁺ → A2⁺ + e^- ; E2
The energy required to pull out the two electrons are E₁ and E₂ respectively. The correct relationship between two energies would be...

The incorrect statement is:

First the ionization energies (in kJ/mol) of three representative elements are given below:
Then incorrect option is:

Which of the following statement is correct regarding following process:

The correct order of increasing electron affinity of the following elements is:

The second electron gain enthalpies (in kJ mol^–1) of oxygen and sulphur respectively are:

Which of the following statements is correct:

Which one of the following statements is incorrect:

The formation of the oxide ion O^2–(g) requires first an exothermic and then an endothermic step as shown below:
This is because:

Identify the wrong sequence of the elements in a group

The electron affinity of the following elements can be arranged:

In which of the following arrangements, the order is not correct according to the property indicated against it:

Which of the following statements is/are wrong:

Consider the following conversions:

That according to given informat ion the incorrect statement is:

The incorrect statement regarding given information is

In the compound M—O—H, the M—O bond will be broken if:

An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.

If the ionization and electron gain enthalpy of an element are 275 and 86 Kcalmol⁻¹ respectively, then the electronegativity of the element on the Mulliken scale is:

Which of the following order is correct for the property ment ioned in brackets:

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Periodic Properties- 2 - Free MCQ Practice Test with solutions, Chemistry

MCQ Practice Test & Solutions: Test: Periodic Properties- 2 (30 Questions)

Incorrect order of ionic size is:

Among NaF , NaCl , NaBr and Nal , the NaF has highest melting point because

Consider the following changes: M (s) → M (g) ........(1) M (s) → M2+ (g) + 2e- .......(2) M (g) → M+ (g) + 2e- .......(3) M+ (g) → M2+ (g) + e- .......(4) M (g) → M2+ (g) + 2e- .......(5)The second ionization energy of M could be calculated from the energy values associated with:

The correct order of second I. E. of C, N, O and F are in the order:

Which is the correct order of ionization energies?

Which of the following statements is incorrect:

First ionization energy is the lowest with:

The incorrect statement among the following is:

The correct values of ionization enthalpies (in kJ mol–1) of Si, P, Cl and S respectively are:

The third ionization energy is maximum for:

Consider the following changes A → A+ + e- : E1 and A+ → A2+ + e- ; E2 The energy required to pull out the two electrons are E1 and E2 respectively. The correct relationship between two energies would be...

The incorrect statement is:

First the ionization energies (in kJ/mol) of three representative elements are given below:Then incorrect option is:

Which of the following statement is correct regarding following process:

The correct order of increasing electron affinity of the following elements is:

The second electron gain enthalpies (in kJ mol–1) of oxygen and sulphur respectively are:

Which of the following statements is correct:

Which one of the following statements is incorrect:

The formation of the oxide ion O2–(g) requires first an exothermic and then an endothermic step as shown below:This is because:

Identify the wrong sequence of the elements in a group

The electron affinity of the following elements can be arranged:

In which of the following arrangements, the order is not correct according to the property indicated against it:

Which of the following statements is/are wrong:

Consider the following conversions: That according to given informat ion the incorrect statement is:

The incorrect statement regarding given information is

In the compound M—O—H, the M—O bond will be broken if:

An element has an atomic number of 15 with which of the following elements will it show similar chemical properties.

If the ionization and electron gain enthalpy of an element are 275 and 86 Kcalmol−1 respectively, then the electronegativity of the element on the Mulliken scale is:

Which of the following order is correct for the property ment ioned in brackets:

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The correct values of ionization enthalpies (in kJ mol^–1) of Si, P, Cl and S respectively are:

Consider the following changes
A → A⁺ + e^- : E1
and A⁺ → A2⁺ + e^- ; E2
The energy required to pull out the two electrons are E₁ and E₂ respectively. The correct relationship between two energies would be...

First the ionization energies (in kJ/mol) of three representative elements are given below:
Then incorrect option is:

The second electron gain enthalpies (in kJ mol^–1) of oxygen and sulphur respectively are:

The formation of the oxide ion O^2–(g) requires first an exothermic and then an endothermic step as shown below:
This is because:

Consider the following conversions:

That according to given informat ion the incorrect statement is:

If the ionization and electron gain enthalpy of an element are 275 and 86 Kcalmol⁻¹ respectively, then the electronegativity of the element on the Mulliken scale is: