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NEET Exam  >  NEET Test  >  Chemistry Class 12  >  Test: IUPAC Nomenclature of Coordination Compounds - NEET MCQ

IUPAC Nomenclature of Coordination Compounds - NEET Chemistry Class 12


MCQ Practice Test & Solutions: Test: IUPAC Nomenclature of Coordination Compounds (25 Questions)

You can prepare effectively for NEET Chemistry Class 12 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: IUPAC Nomenclature of Coordination Compounds". These 25 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 35 minutes
  • - Number of Questions: 25

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Test: IUPAC Nomenclature of Coordination Compounds - Question 1
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Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. According to IUPAC nomenclature, sodium nitroprusside is named as

Detailed Solution: Question 1

IUPAC name of sodium nitroprusside Na2[Fe(CN)5NO] is sodium pentacyanonitrosyl ferrate (III) because in it NO is neutral ligand and the oxidation number of Fe is +3. Which is calculated as Na2[Fe(CN)5NO]
2 × (+1) + x +5×(−1)+1×0 = 0
2 + x - 5 = 0
x - 3 = 0
x = + 3

Test: IUPAC Nomenclature of Coordination Compounds - Question 2
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The formula of the complex hexamminecobalt (III) chloride sulphate is

Detailed Solution: Question 2

The formula of complex hexamminecobalt (III) chloride sulphate is [Co(NH3)6]CISO4.

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Test: IUPAC Nomenclature of Coordination Compounds - Question 3
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The IUPAC name of the compound [Cr(NH3)5(NCS)][ZnCI4] is

Detailed Solution: Question 3

The lUPAC name of [Cr(NH3)5(NCS)][ZnCI4] is pentammine isothiocyanatochromium (III) tetrachlorozincate (II).

Test: IUPAC Nomenclature of Coordination Compounds - Question 4
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The IUPAC name of the complex [(CO)5Mn - Mn(CO)5] is

Detailed Solution: Question 4

Decacarbonyldimanganese (0), Mn2(CO)10, is made up of two square pyramidal Mn(CO)5 units joined by a Mn-Mn bond.

Test: IUPAC Nomenclature of Coordination Compounds - Question 5
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The donor sites of EDTA ligand are

Detailed Solution: Question 5

Ethylenediaminetetraacetate ion (EDTA)4- is an important hexadentate ligand. It can bind through two nitrogen and four oxygen atoms to a central metal ion.

Test: IUPAC Nomenclature of Coordination Compounds - Question 6
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The IUPAC name of [Ni(PPh3)2CI2]2+ is

Detailed Solution: Question 6

The IUPAC name of [Ni(PPh3)CI2]2+ is dichloro bis (triphenylphosphine) nickel (ll)ion.

Test: IUPAC Nomenclature of Coordination Compounds - Question 7
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Formula of brown ring complex is

Detailed Solution: Question 7

The brown ring test for nitrates depend on the ability of Fe2+ to reduce nitrates to nitric oxide, which reacts with Fe2+ to form a brown coloured complex.

Test: IUPAC Nomenclature of Coordination Compounds - Question 8
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The IUPAC name of the compound K[SbCl5Ph] is

Detailed Solution: Question 8

The correct option is B Potassium pentachloro(phenyl) antimonate(V)
IUPAC naming of coordination compound:

The names of coordination compounds are derived by the following principles of nomenclature,
1. The cation is named first in both positively and negatively charged coordination entities.
2. The ligands are named in an alphabetical order before the name of the central atom/ion.
3. When coordination entity is anionic, the name of central metal atom end with 'ate' followed by its oxidation number in roman numericals.

In given compound, the charge on coordination entity is -1.
Cl− and phenyl are monodentate anionic ligand.
Thus, the oxidation state of Sb is +5.
Hence, the IUPAC name of the compound K[SbCl5Ph] is Potassium pentachloro(phenyl)antimonate(V)

Test: IUPAC Nomenclature of Coordination Compounds - Question 9
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K2[OsCI5N] is named as

Detailed Solution: Question 9

K2[OsCI5N] is named as potassium pentachlorozoosmate (VI)

Test: IUPAC Nomenclature of Coordination Compounds - Question 10
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What is the IUPAC name of compound NaBH4?

Detailed Solution: Question 10

The IUPAC name of NaBH4 is sodium tetrahydridoborate 

*Multiple options can be correct
Test: IUPAC Nomenclature of Coordination Compounds - Question 11
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Direction (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q. 

Which of the following complexes have correct name?

Detailed Solution: Question 11

Complexes K[Pt(NH3)Cl5] and [Ag(CN)2]- have been given their respective IUPAC names.

*Multiple options can be correct
Test: IUPAC Nomenclature of Coordination Compounds - Question 12
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Which is/are the correctly named?

Detailed Solution: Question 12

DMG (bidentate and neutral) is not named correctly, acac, bipy and gly have correct names respectively.

*Multiple options can be correct
Test: IUPAC Nomenclature of Coordination Compounds - Question 13
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The correct name of ligand(s) in IUPAC name is/are

Detailed Solution: Question 13

The correct name of ligand in IUPAC name are thiosulphate and cyclopentadienyl [(C5H5)-].

Test: IUPAC Nomenclature of Coordination Compounds - Question 14
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The ionisation isomer of [Cr(H2O)4Cl(NO2)Cl] is

Detailed Solution: Question 14

Ionization isomers are identical except that a ligand has exchanged places with anion or neutral molecule that was originally outside the coordination complex.
Thus, in Ionization isomerism the central ion and the other ligands are identical.
So, according to the definition, Cl- is replaced by NO2- in the ionization sphere.
 [Cr(H2O)4Cl(NO2)Cl] ---->  [Cr(H2O)4Cl(NO2)]+ + Cl-
[Cr(H2O)4Cl2]NO2 -----> [Cr(H2O)4Cl2]+ + NO2-

*Multiple options can be correct
Test: IUPAC Nomenclature of Coordination Compounds - Question 15
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The ligand(s) which gives chelate complexes is/are

Detailed Solution: Question 15

When a di or polydentate ligand used its two or more d onor atoms to bind a single metal ion. It is said to be a chelate ligand. The number of such ligating groups is called the denticity of the ligand. Such complexes are called chelate complex tend to be more stable than similar complexes containing unidentate ligands.

Test: IUPAC Nomenclature of Coordination Compounds - Question 16
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Comprehension Type

Direction (Q. Nos. 16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions have been related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

In naming complexes, cation is named first followed by anion. Non-ionic or neutral complexes are given a one word name. The cationic and neutral complex ions are named by writing ‘the number and name of the ligands followed by the name of the central metal ion with its oxidation number in roman numerals within the parenthesis. If the complex is anionic, name of the metals ends with ‘ate’. When the complex contain two or more metal atoms linked with the help of bridging ligand then each bridging ligand is started with μ.

Q. 

Name of [CoBr(NH3)4 NO2] is

Detailed Solution: Question 16

The correct name of [CoBr(NH3)4NO2] is tetramminebromonitrocobalt (II).

Test: IUPAC Nomenclature of Coordination Compounds - Question 17
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In naming complexes, cation is named first followed by anion. Non-ionic or neutral complexes are given a one word name. The cationic and neutral complex ions are named by writing ‘the number and name of the ligands followed by the name of the central metal ion with its oxidation number in roman numerals within the parenthesis. If the complex is anionic, name of the metals ends with ‘ate’. When the complex contain two or more metal atoms linked with the help of bridging ligand then each bridging ligand is started with μ.

Q. 

The IUPAC name of [Ni(NH3)4] [NiCI4] is

Detailed Solution: Question 17

The IUPAC name of [Ni(NH3)4][NiCI4] is tetramminenickel (II) tetrachloronickelate (II).

Test: IUPAC Nomenclature of Coordination Compounds - Question 18
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Matching List Type

Direction (Q. Nos. 18 and 19) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q. 

Match the Column I with Column II and mark the correct option from the codes given below.

Detailed Solution: Question 18

(i) → (q,t), (ii) → (q ,s), (iii) → (r,t), (iv) → (p ,s)

The complex PtCl4.5NH3 is designated as [Pt(NH3)5Cl]Cl3 which ionizes to [Pt(NH3)5Cl]3+ + 3Cl- ions. Thus, three moles of AgCl are produced from 3Cl- ions with AgNO3.
So, PtCl4.5NH3 is Cationic Complex.

Test: IUPAC Nomenclature of Coordination Compounds - Question 19
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Match the column I with column II and mark the correct option from the codes given below.

Detailed Solution: Question 19

*Answer can only contain numeric values
Test: IUPAC Nomenclature of Coordination Compounds - Question 20
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One Integer Value Correct Type

Direction (Q. Nos. 20-24) This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. Ethylenediamminetetraacetate ion is a polydentate ligand and negatively charged. The magnitude of negative charge is


Detailed Solution: Question 20

The correct answer is 4.

*Answer can only contain numeric values
Test: IUPAC Nomenclature of Coordination Compounds - Question 21
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The oxidation state of the central metai in the complex ion [Fe(EDTA)]- .


Detailed Solution: Question 21

In [Fe(EDTA)]-, Let the oxidation state is x then
x - 4 = - 1
⇒ x = 4 - 1 = 3

*Answer can only contain numeric values
Test: IUPAC Nomenclature of Coordination Compounds - Question 22
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The complex potassium dicyanodioxalatonickelate (II) in solution produce....... ions.


Detailed Solution: Question 22

The structure of potassium dicyanodio xalatonickelate (II) is
K4[Ni(CN)2(ox)2].
K4[Ni(CN)2(ox)2] →  4K+ + [Ni(CN)2(ox)2]- 
This produce 5 ions in solution.

*Answer can only contain numeric values
Test: IUPAC Nomenclature of Coordination Compounds - Question 23
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Number of EDTA molecules required to form an octahedral complex.


Detailed Solution: Question 23

EDTA is hexadentate ligand hence, its coordination number is 6.

Test: IUPAC Nomenclature of Coordination Compounds - Question 24
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IUPAC name of [Pt(NH3)2Cl(NO2)] is

Detailed Solution: Question 24

Ans: c

Explanation:Pt(NH3)2Cl(NO2)

m − 2 = 0 

m = +2 

(NH3)2 ⇒ Diammine 

Cl ⇒ Chlorido

NO2 ⇒ Nitrito-N. 

So, IUPAC NAME: diamminechloridonitrito-N-platinum(II)

Test: IUPAC Nomenclature of Coordination Compounds - Question 25
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Statement Type

Direction (Q. No. 25) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q. 

Statement l : IUPAC name of the complex [(NH3)5—Cr—OH—Cr (NH3)5]CI5 is pentammine chromium-μ-hydroxopentammine chromium (III) chloride.

Statement II : IUPAC name of the complex [Ni(dmg)2] is bis (dimethylglyoximato) nickel (III).

Detailed Solution: Question 25

[Ni(dmg)2] : bis (dimethylglyoximato) nickel (II)

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This test contains 25 MCQs on IUPAC Nomenclature of Coordination Compounds with detailed solutions for each question. It is part of the Chemistry Class 12 course on EduRev, designed to align with the current NEET syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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