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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced


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15 Questions MCQ Test Chemistry 35 Years JEE Main & Advanced Past year Papers | Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced

Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced for JEE 2023 is part of Chemistry 35 Years JEE Main & Advanced Past year Papers preparation. The Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced questions and answers have been prepared according to the JEE exam syllabus.The Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced MCQs are made for JEE 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced below.
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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 1

Potassium manganate (K2MnO4) is formed when

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 1

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 2

The aqueous solutions of the following salts will be coloured in the case of

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 2

Aqueous solution of Co(NO3)2 and CrCl3 in which Co2+ (d7) and Cr3+ (d3) contains incompletely filled d-orbitals are coloured.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 3

Among the following ions which one has the highest paramagnetism?

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 3

Highest parmagnetic character will be shown by the ion having maximum number of unpaired electrons in their d-subshells.
25Cr3+ has 3 unpaired electrons ; 26Fe2+ has 4 unpaired electrons
29Cu2+ has 1 unpaired electrons ; 30Zn2+ has no unpaired electrons
So (a), (b) & (c) show paramagnetism. Out of which (b) has the highest paramagnetism.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 4

Which of the following alloys contains(s) Cu and Zn?

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 4

Brass : Cu (60-80%), Zn (40-20%); Gun Metal : Cu (87%), Sn (10%), Zn (3%).

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 5

In nitroprusside ion the iron and NO exist as FeII and NO+ rather than FeIII and NO. These forms can be differentiated by

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 5

The magnetic moment (μ) of a species is related to its number of unpaired electrons (n) in form of following expressions.

The number of unpaired electrons in the given pairs are as follows:


The given combinations differ in the number of unpaired electrons. Hence these can be differentiated by the measurement on the solid state magnetic moment of nitroprusside ion.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 6

Addition of high proportions of manganese makes steel useful in making rails of railroads, because manganese

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 6

Mn makes steel harder and increases its elasticity and tensile strength. Further Mn acts as deoxidiser.
MnO reacts with S present in cast iron, gets oxidised and then combine to form slag.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 7

If the bond length of CO bond in carbon monoxide is 1.128Å, then what is the value of CO bond length in Fe(CO)5?

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 7

In Fe(CO)5​ there exists a synergic bond between Fe and CO. Due to synergic bond formation between metal and CO, the bond order of CO decreases.

As bond order decreases the Bond length increases.Here the only option having greater bond length than 1.128A0 is option A 1.158A0.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 8

The compound(s) that exhibit(s) geometrical isomerism is (are)

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 8


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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 9

Reduction of the metal centre in aqueous permanganate ion involves

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 9

In acidic medium

Change in oxidation state of Mn = 7 – 2 = 5

Thus electrons lost = 5
In neutral medium

Change in oxidation state of Mn = 7 – 4 = 3
∴ Electrons lost = 3

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 10

The equilibrium

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 10

Cu2+ ions will react with CN and SCN forming [Cu(CN)4]3– and [Cu(SCN)4]3– leading the reaction in the backward direction.

Cu2+ also combines with CuCl2 which reacts with Cu to produce CuCl pushing the reaction in the backward direction.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 11

For the given aqueous reactions, which of the statement (s) is (are) true?


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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 12

The pair(s) of coordination complexes/ions exhibiting the same kind of isomerism is(are)

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 12

Th e pair of complex ion s [Co(NH3)4Cl2]+ and [Pt(NH3)2(H2O)Cl]+ show geometrical isomerism.
The pair of complexes [Pt(NH3)3(NO3)]Cl and [Pt(NH3)3Cl]Br show ionisation isomerism. The other pairs given do not have same type of isomerism.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 13

The pair (s) of reagents that yield paramagnetic species is/are

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 13

Na + NH3 (excess) → Dilute solution of Na in liq.
NH3 → Paramagnetic
K + O2 (excess) → KO2 (O2 is paramagnetic)
Cu + HNO3 (dil.) → Cu(NO3)2 + NO (NO is paramagnetic) 2-Ethylanthraquinol + O2 →
2-Ethylanthraquinone + H2O2
(H2O2 is diamagnetic)

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 14

The correct statement(s) about Cr2+ and Mn3+ is(are) [Atomic numbers of Cr = 24 and Mn = 25] 

Detailed Solution for Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 14

Cr2+ is a reducing agent and Mn3+ is an oxidizing agent and both have electronic configuration d4.

Above E° values explains reducing nature of Cr2+ and oxidizing behaviour of Mn3+.

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Test: MCQs (One or More Correct Option): The d- and f-Block Elements & Coordination Compounds | JEE Advanced - Question 15

Fe3+ is reduced to Fe2+ by using

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