Chemistry Group VA and VI Elements MCQs Chapter 4 Class 12 - PLS Academy

Chemistry Group VA and VIA Elements MCQs – Chapter 4 Class 12

Chemistry Group VA and VIA Elements is an important chapter of Class 12 Chemistry and plays a key role in FSc Part-II exams and entry test preparation. MCQs from this chapter are frequently included in MDCAT, NUMS, AKU, NUST, UET ECAT, and board examinations. This chapter covers essential topics such as the general properties, electronic configurations, oxides, hydrides, and important compounds of group VA (Nitrogen family) and group VIA (Oxygen family) elements.

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Created on February 10, 2022 By Ali Durrani

Chemistry Ch 4 Class 12 d and f Block Elements

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1 / 42

Which transition metal is used the most in industries?

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) Fe

B) Mg

C) Ca

D) C

2 / 42

Gas which has percentage equal to 78% In air Is the

Oxygen

Hydrogen

Carbon dioxide

Nitrogen

3 / 42

D block elements are also called as ____ ?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

A) Rare earth elements

B) Outer transition elements

C) Inner transition elements

D) Typical transition elements

4 / 42

The colour of transition metal complexes is due to:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) d-d transition of electrons.

B) Paramagnetic nature of transition elements

C) Loss of s-electrons

D) Refraction phenomenon

5 / 42

Copper reacts with hot concentrated H2SO4 in presence of

Air

Water

Ammonia

Strong heat

6 / 42

Paramagnetic elements contain:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) All paired electrons

B) All unpaired electrons

C) Few unpaired electrons.

D) Unequal electrons and protons

7 / 42

In rhombic sulphur there are atoms in each molecule?

8 / 42

Which statement is true for K2(Cu(CN)4) ?

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

A) Potassium tetra cyano cuprate

B) Coordination number is 2

C) The ligand is positively charged

D) Central atom is present in the anionic sphere

9 / 42

The ligand field effect splits five degenerate d-orbitals into two sets with different energies, the pair of high energy degenerate orbitals is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) dxy, dyz

B) dyz, dzx

C) dx2 ,d

D) dx2 – y2, dy2

10 / 42

Choose the correct IUPAC name for the following complex.

[Cr(NH3)4Cl2]Cl

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Trichlorotetra amine chromium (lII)

B) Dichlorotetra amine chromium (III) chloride

C) Dichloro Tetra ammonia chromium (III) chloride

D) Dichlorotetra amine chromate (lll) chloride

11 / 42

What are interstitial compounds?

PMC Sample 2
Chemistry
d and f Block Elements
Elimination Tool:

A) Transition elements containing small proportion of H, B, C, N

B) Transition elements containing small proportion of He, Ne, Ar, Xe

C) The compounds in which transition elements are in their highest oxidation state.

D) The compounds of transition elements which are not stable.

12 / 42

H3PO3 is

Weak reducing agent

Strong reducing agent

Strong oxidizing agent

Weak oxidizing agent

13 / 42

In which of the following the oxidation state of S is the highest

SO2

SCl2

H2SO4

H2S03

14 / 42

d-block elements are present _____________ in the periodic table ?

PMC Sample 3
Chemistry
d and f Block Elements
Elimination Tool:

A) Right of the periodic table

B) Left of the periodic table

C) Bottom of periodic table

D) Between s and p block elements

15 / 42

Hardness of transition metals is due to ______?

PMC Practice 6
Chemistry
d and f Block Elements
Elimination Tool:

A) More melting point

B) More electrons

C) Variable oxidation state

D) Higher binding energies

16 / 42

Formula of laughing gas is?

NH4

N20

NO3

17 / 42

Which member of 5A group has no stable isotope?

Phosphorous

Bismuth

Nitrogen

Arsenic

18 / 42

Which one of the following does not have allotropes?

19 / 42

Both 02 and 03 are Oxidizing agents but 02 is preferred because:

It is relatively unstable than 02

It provides an extra oxygen atom then 02

It provides Nascent Oxygen

All of above

20 / 42

The formula of Chile Peter salt is

NaCI

NaNO3

NaOH

NaNO4

21 / 42

The geometry of the complex compounds usually depends upon:

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) All of the given choices

B) Hybridization of central metal

C) Type of ligands

D) Types of hybridization in the elements of ligands

22 / 42

Which of these is not an isotope of Phosphorus?

Red Phosphoru

Black Phosphorus

White Phosphorus

Gray Phosphorus

23 / 42

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Linear

B) Square planar

C) Tetrahedral

D) Octahedral

24 / 42

Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

UHS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Cu

B) Cu+

C) Cu-

D) Cu2+

25 / 42

Which of the following properties are associated with transition metals?

PMC Practice 6
Chemistry
d and f Block Elements
Elimination Tool:

A) Color

B) Complex formation

C) Use as catalyst

D) All of these

26 / 42

Oxidation Number of all the elements in the free state is?

PMC Practice 5
Chemistry
d and f Block Elements
Elimination Tool:

A) Unity

B) Positive

C) Zero

D) Negative

27 / 42

Which one of the following elements has six valence electrons?

28 / 42

Au3+ has __________ configuration.

PMC Practice 5
Chemistry
d and f Block Elements
Elimination Tool:

A) 5d7

B) 4d9

C) 5d8

D) 5d10

29 / 42

Which of the following has allotropic forms:

Oxygen

Sulphur

Both

None of these

30 / 42

Which of the following does not occur in Free State?

Nitrogen

Phosphorous

Oxygen

Sulphur

31 / 42

F-block elements are called?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

A) Inner transition

B) Outer transition

C) Both

D) None

32 / 42

The transition elements belongs to Group VI B are

PMC Practice 6
Chemistry
d and f Block Elements
Elimination Tool:

A) Zn, Cd, Hg

B) Fe, Ru, Os

C) Mn, Te, Re

D) Cr, Mo, W

33 / 42

Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Polydentate ligands

B) Monodentate ligand

C) Bidentate ligands

D) Hexadentate ligands

34 / 42

The correct electronic configuration of Cr is:

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

A) [Ar] 4s23d4

B) [Ar] 4s23d5

C) [Ar] 4s13d4

D) [Ar] 4s13d5

35 / 42

H2SO4 is used in industries of?

Paint

Textile

Rubber

Aluminum

36 / 42

Nitrogen has oxides:

Several

37 / 42

Which is the correct electronic configuration of Chromium (24Cr)?

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) 1s2, 2s2, 3s2, 2p6, 3p6, 4s2, 3d6

B) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4

C) 1s1, 2s2, 2p6, 3s2, 3p6, 3d6

D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5

38 / 42

Which of the following is typical transition element?

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

A) Zn

B) Cd

C) Cu

D) Hg

39 / 42

Unpaired electron trend of transition elements:

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) Increases till Mn and decreases till Zn

B) Remains unchanged

C) Decreases

D) Increase

40 / 42

The chemical name of K2[Zn(OH)4] is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Potassium tetrahydroxyzinc (II)

B) Potassium tetrahydroxozincate (II)

C) Potassium tetrahydroxyzincate (VI)

D) Potassium hydroxyzinc (II)

41 / 42

Which of the following sets is of coinage metals?

PMC Sample 2
Chemistry
d and f Block Elements
Elimination Tool:

A) Cu, Ag, Au

B) Zn, Cd, Hg

C) Au, Ag, Zn

D) Li, Na, K

42 / 42

Which one of the following Is a vulcanizing agent?

Sodium

Iron

Sulphur

Potassium

Your score is

The average score is 59%

Importance of Group VA and VIA Elements MCQs

A strong understanding of Group VA and VIA Elements helps students explain trends in chemical behavior, predict reactivity, and solve conceptual and numerical problems. Exams often include MCQs on physical and chemical properties, oxidation states, and reactions of these elements. Practicing chapter-wise MCQs improves conceptual clarity, accuracy, and confidence for competitive exams.

Effective Strategy for Free Preparation

For effective preparation, students should revise electronic configurations, memorize key reactions and properties, and solve topic-wise MCQs consistently. Attempting free tests and past paper questions helps identify important concepts and repeated exam patterns. PLS Academy provides structured MCQs and free resources to support Chemistry Group VA and VIA Elements preparation and other Class 12 Chemistry chapters.

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