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Recent questions tagged d-and f- block elements
+3
votes
1
answer
Write the electronic configurations of the elements with the atomic numbers, 61, 91, 101, and 109.
asked
Apr 7, 2019
in
Class 12
by
kratos
class-12-hindi
d-and f- block elements
neet
class-12
d-and f- block elements hindi
+2
votes
1
answer
Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?
asked
Apr 6, 2019
in
JEE
by
kratos
transition metals including lanthanides
d-and f- block elements
jee
jee mains
coordinatian compounds
+3
votes
1
answer
From the given figure describing the photoelectric effect it may be inferred that
asked
Apr 5, 2019
in
Class 12
by
kratos
d-and f- block elements
neet
force and motion
aiims
class-12
aiims 2019
gravitation
+1
vote
1
answer
Which of following is used as oxidizing agent in volume tric analysis ?
asked
Apr 4, 2019
in
JEE
by
kratos
d-and f- block elements
class-12
jee
jee mains
+1
vote
1
answer
Identify the alloy containing a non-metal as a constituent in it. (a) Invar (b) Steel
asked
Apr 3, 2019
in
Class 12
by
kratos
d-and f- block elements
neet
+3
votes
1
answer
Stainless steel contains (1) Fe, Cr, Ni, C
asked
Apr 3, 2019
in
JEE
by
kratos
metals and nonmetals
d-and f- block elements
jee
class-10
jee mains
class-12
+1
vote
1
answer
Which of the following groups of transition metals is called coinage metals? (a) Cu, Ag, Au (b) Ru, Rh, Pd (c) Fe, Co, Ni (d) Os,Ir, Pt
asked
Apr 3, 2019
in
JEE
by
kratos
d-and f- block elements
jee
jee mains
coordinatian compounds
class-12
+3
votes
1
answer
Transition elements generally form ******** compounds. Why?
asked
Apr 2, 2019
in
Class 12
by
kratos
d-and f- block elements
class-12
+2
votes
1
answer
The general oxidation state of Lanthanide elements is +3. Which of following is incorrect statement for them ?
asked
Apr 2, 2019
in
JEE
by
kratos
d-and f- block elements
jee
jee mains
+1
vote
1
answer
Describe the oxidising action of potassium dichromate
asked
Apr 2, 2019
in
Class 12
by
kratos
the d- and f- block elements
d-and f- block elements
class-12
cbse
+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
+1
vote
1
answer
The enthalpies of atomization of transition elements are quite high.
asked
Apr 1, 2019
in
Class 12
by
kratos
the d- and f- block elements
d-and f- block elements
class-12
cbse
+3
votes
1
answer
How many d-electrons are their in Fe^2+ (Z = 26)
asked
Apr 1, 2019
in
JEE
by
kratos
d-and f- block elements
coordinatian compounds
jee
jee mains
+2
votes
1
answer
In the reaction 2FeCl2 + Cl2→2FeCl3, chlorine may be regarded as
asked
Mar 30, 2019
in
Class 12
by
kratos
class-12-hindi
d-and f- block elements
neet
rasaynic balgatiki
jee
atomic structure
jee mains
chemical kinetics hindi
coordinatian compounds
chemical kinetics
+1
vote
1
answer
Which of the following arrangements does not represent the correct order of the property stated against it ?
asked
Mar 28, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
d-and f- block elements
neet
periodic properties
jee
jee mains
coordinatian compounds
p - block element
+1
vote
1
answer
Sc, the first member of first transition series does not exhibit variable oxidation state. Why ?
asked
Mar 28, 2019
in
Class 12
by
kratos
d-and f- block elements
class-12
neet
cbse
+2
votes
1
answer
What may be the possible oxidation states of the transition metals with the following d electronic configurations for the ground state
asked
Mar 28, 2019
in
Class 12
by
kratos
d-and f- block elements
class-12
neet
+1
vote
1
answer
The four quantum number values of the 21^st electron of Scandium (Sc) are given in the following table.
asked
Mar 27, 2019
in
JEE
by
kratos
classification of elements and periodicity in properties
d-and f- block elements
cbse
electoral politices
class-11
jee
class-9
jee mains
class-12
+3
votes
1
answer
Explain the cause of lanthanide contraction.
asked
Mar 26, 2019
in
JEE
by
kratos
transition metals including lanthanides
d-and f- block elements
class-11
jee
transition and inner transition elements
jee mains
coordinatian compounds
class-12
periodic classification of elements
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