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Recent questions tagged transition elements
+2
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1
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If for the reaction PbO2 → PbO, ΔG° < 0 And for the reaction SnO2 → SnO, ΔG° > 0
asked
Apr 4, 2019
in
Class 12
by
kratos
neet
thermodynamic
coordination compounds
jee
nsec
transition elements
jee mains
p - block element
+3
votes
1
answer
Potassium ferricyanide [potassium hexacyano ferrate (III)] has
asked
Apr 4, 2019
in
JEE
by
kratos
class-12
jee mains
coordination compounds
jee
transition elements
qualitative analysis
cbse
+1
vote
1
answer
Geometrical shapes of the complexes formed by the reaction of Ni^2+ with CI-,CN- and H2O respectively are
asked
Apr 4, 2019
in
JEE
by
kratos
jee
coordination compounds
transition elements
jee mains
+3
votes
1
answer
Among the following ions, which one has the highest paramagnetism? (A) [Cr(H2O)6 ]^3+ (B) [Fe(H2O)6 ]^2+ (C) [Cu(H2O)6 ]^2+
asked
Apr 4, 2019
in
JEE
by
kratos
jee
coordination compounds
transition elements
jee mains
+3
votes
1
answer
A metal complex having composition Cr (NH3)4Cl2Br has been isolated in two forms A and B.
asked
Apr 2, 2019
in
Class 12
by
kratos
neet
coordination compounds
coordination
jee main 2020
jee
aiims
class-11
kvpy
transition elements
jee mains
class-12
+3
votes
1
answer
State the conditions under which the following preparations are carried out. Give the necessary equations which need not be balanced.
asked
Apr 2, 2019
in
JEE
by
kratos
ether
coordination compounds
jee
transition elements
alcohols
jee mains
alkyl halides
+1
vote
1
answer
Complete the following chemical equations: (i) MnO4- + C2O42- + H+ →
asked
Apr 1, 2019
in
JEE
by
kratos
d-and f- block elements
cbse
coordination compounds
jee
transition elements
jee mains
class-12
+2
votes
1
answer
The complex showing a spin-only magnetic moment of 2.82 BM is
asked
Apr 1, 2019
in
JEE
by
kratos
d-and f- block elements
coordination compounds
jee
transition elements
jee mains
coordinatian compounds
+3
votes
1
answer
How would you account for the following : (a) [Fe(CN6 ]^3– is weakly paramagnetic while
asked
Mar 31, 2019
in
JEE
by
kratos
coordination compounds
coordination
jee
transition elements
jee mains
coordinatian compounds
class-12
+1
vote
1
answer
Explain the magnetic properties of first transition series metal ions.
asked
Mar 31, 2019
in
Class 12
by
kratos
class-11
d block elements
class-12
transition elements
+2
votes
1
answer
Alginates (alginin), used as highly efficient gauze in internal operations are obtained from cell walls of
asked
Mar 30, 2019
in
Chemistry
by
kratos
introduction of chemistry
cbse
coordination compounds
jee
class-6
transition elements
icse
jee mains
p - block element
+3
votes
1
answer
In a particular isomer of [Co(NH3)4Cl2]^0, the Cl - Co - Cl angle is 90°, the isomer is known as
asked
Mar 28, 2019
in
JEE
by
kratos
jee main 2020
coordination compounds
jee
transition elements
jee mains
+2
votes
1
answer
The formula of dichlorido bis (urea) copper (II) is ?
asked
Mar 27, 2019
in
Class 12
by
kratos
neet
coordination compounds
jee
transition elements
jee mains
+3
votes
1
answer
Hexafluoroferrate (III) ion is an outer orbital complex. The number of unpaired electrons present in it is :
asked
Mar 25, 2019
in
JEE
by
kratos
coordination compounds
transition elements
jee
jee mains
+3
votes
1
answer
Fe^3+ + SNC^-(excess) → A(blood red) + F^-(excess) → B (colourless) Identify A and B.
asked
Mar 25, 2019
in
JEE
by
kratos
jee
coordination compounds
transition elements
jee mains
+1
vote
1
answer
The magnetic moment (spin only) of [NiCI4]^2- is
asked
Mar 22, 2019
in
JEE
by
kratos
coordination compounds
transition elements
jee
jee mains
+2
votes
1
answer
Calculate the magnetic moments(spin only) of the following complexes (i) [PtCl6 ]^2– (ii) [Cr(CO)6 ] (iii) [Ir(NH3)6 ]^3+
asked
Mar 22, 2019
in
JEE
by
kratos
coordination compounds
transition elements
jee
jee mains
+2
votes
1
answer
B(OH)3 + NaOH ⇒ NaBO2 +Na[B(OH)4] +H2O How can this reaction is made to proceed in forward direction.
asked
Mar 21, 2019
in
JEE
by
kratos
coordination compounds
class-11
jee
chemical equilibrium
transition elements
jee mains
alkali and alkaline earth metals
p - block element
+3
votes
1
answer
In which of the following octahedral complexes of Co (at. no.27) will be magnitude of D 0 be the highest ?
asked
Mar 21, 2019
in
JEE
by
kratos
transition metals including lanthanides
d-and f- block elements
coordination compounds
jee
transition elements
jee mains
coordinatian compounds
+3
votes
1
answer
The number of unpaired electrons present in complex ion [FeF6 ]^3- is : A) 5 (B) 4 (C) 6 (D) 0
asked
Mar 19, 2019
in
Class 12
by
kratos
neet
coordination compounds
jee
transition elements
jee mains
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