EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 9th April 2014>Q 17

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IMPORTANT

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A compound of vanadium chloride has spin only magnetic moment of $1.73$ BM. Its formula is

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Important Questions on The d- and f-Block Elements

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JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th January 2020 Shift 2>Q 18

A metal

(A)

on heating in nitrogen gas gives compound

B .

B

on treatment with

H_{2} O

gives a colourless gas which when passed through

C u S O_{4}

solution gives a dark blue-violet coloured solution.

A

and

B

respectively, are:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th January 2020 Shift 2>Q 19

The correct order of the calculated spin-only magnetic moments of complexes

(A)

to

(D)

is:

(A)

N i {(C O)}_{4}

(B)

[N i {(H_{2} O)}_{6}] C l_{2}

(C)

N a_{2} [N i {(C N)}_{4}]

(D)

P d C l_{2} {(P P h_{3})}_{2}

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th January 2020 Shift 1>Q 20

The third ionization enthalpy is minimum for:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th April 2019 Shift 2>Q 21

The statement that is INCORRECT about the interstitial compounds is:

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JEE Main

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th April 2019 Shift 1>Q 22

The lanthanide ion that would show colour is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th January 2020 Shift 2>Q 23

Among the statements

(a) - (d)

, the incorrect ones are:

(a)

Octahedral

C o (I I I)

complexes with strong field ligands have very high magnetic moments

(b)

When

∆_{0} < P

, the d-electron configuration of

C o (I I I)

in an octahedral complex is

t_{e g}^{4} e_{g}^{2}

(c)

Wavelength of light absorbed by

{[C o {(e n)}_{3}]}^{3 +}

is lower than that of

{[{C o F}_{6}]}^{3 -}

(d)

If the

∆_{0}

for an octahedral complex of

C o (I I I)

is

18,000 c m^{- 1}

, the

∆_{t}

for its tetrahedral complex with the same ligand will be

16,000 c m^{- 1}

.

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JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th January 2020 Shift 1>Q 24

The atomic radius of

A g

is closest to

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th April 2013>Q 25

Which of the following arrangements does not represent the correct order of the property stated against it?