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Periodic Table and Periodicity
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Chemical Bonding and Molecular Structure
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Environmental Chemistry
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Some Basic Concepts of Organic Chemistry
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1
NEET 2021
MCQ (Single Correct Answer)
Match List-I with List-II :
List-I
List-II
(a)
$${[Fe{(CN)_6}]^{3 - }}$$
(i)
5.92 BM
(b)
$${[Fe{({H_2}O)_6}]^{3 + }}$$
(ii)
0 BM
(c)
$${[Fe{(CN)_6}]^{4 - }}$$
(iii)
4.90 BM
(d)
$${[Fe{({H_2}O)_6}]^{2 + }}$$
(iv)
1.73 BM
Choose the correct answer from the options given below.
A
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
B
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
C
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
D
(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
CHECK ANSWER
Explanation
Magnetic moment, $$\mu = \sqrt {n(n + 2)} $$ BM (where n = number of unpaired electrons)
2
NEET 2021
MCQ (Single Correct Answer)
Ethylene diaminetetraacetate (EDTA) ion is :
A
Tridentate ligand with three "N" donor atoms
B
hexadentate ligand with four "O" and two "N" donor atoms
C
Unidentate ligand
D
Bidentate ligand with two "N" donor atoms
CHECK ANSWER
Explanation
Ethylene diaminetetraacetate (EDTA) ion is a hexadented ligand having four donor oxygen atoms and two donor nitrogen atoms
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?
A
SCN
$$ - $$
< F
$$ - $$
< CN
$$ - $$
< C
2
O
4
2-
B
F
$$ - $$
< SCN
$$ - $$
< C
2
O
4
2-
< CN
$$ - $$
C
CN
$$ - $$
< C
2
O
4
2-
SCN
$$ - $$
< F
$$ - $$
D
SCN
$$ - $$
< F
$$ - $$
< C
2
O
4
2-
< CN
$$ - $$
CHECK ANSWER
Explanation
Spectrochemical series (as given in NCERT) :
$${L^ - } < B{r^ - } < SC{N^ - } < C{l^ - } < {S^{ - 2}} < {F^ - } < O{H^ - } < {C_2}{O_4}^{2 - } < {H_2}O < NC{S^ - } < EDT{A^{4 - }} < N{H_3} < en < C{N^ - } < CO$$
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
The calculated spin only magnetic moment of Cr
2+
ion is?
A
4.90 BM
B
5.92 BM
C
2.84 BM
D
3.87 BM
CHECK ANSWER
Explanation
Electronic configuration of $$Cr:[Ar]3{d^5}4{s^1}$$
Electronic configuration of $$C{r^{2 + }}$$:[Ar]3d
4
No. of unpaired electrons = 4
Spin only magnetic moment = $$\sqrt {n(n + 2)} $$
n = number of unpaired e
$$ - $$
Spin only magnetic moment = $$\sqrt {4(4 + 2)} $$
= $$\sqrt {24} $$ BM
= 4.9 BM
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Questions Asked from Coordination Compounds
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Chapters Map
Physical Chemistry
Some Basic Concepts of Chemistry
Structure of Atom
Redox Reactions
Gaseous State
Equilibrium
Solutions
Chemical Kinetics
Thermodynamics
Electrochemistry
Nuclear Chemistry
Solid State
Surface Chemistry
Inorganic Chemistry
Periodic Table and Periodicity
Chemical Bonding and Molecular Structure
Processes of Isolation of Elements
s-Block Elements
Hydrogen
p-Block Elements
d and f Block Elements
Coordination Compounds
Environmental Chemistry
Organic Chemistry
Some Basic Concepts of Organic Chemistry
Hydrocarbons
Haloalkanes and Haloarenes
Alcohol, Phenols and Ethers
Aldehydes, Ketones and Carboxylic Acids
Organic Compounds Containing Nitrogen
Polymers
Biomolecules
Chemistry in Everyday Life
Joint Entrance Examination
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JEE Advanced
WB JEE
Graduate Aptitude Test in Engineering
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GATE ME
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