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Recent questions tagged classification of elements and periodicity in properties
+2
votes
1
answer
Among the element Li,N,C and Be, one with the largest atomic radius is
asked
Apr 6, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
periodicity in properties
classification of elements
class-11
kvpy
ntse
+3
votes
1
answer
Which type of intermolecular forces exists among the following molecules? (a) H2S molecules (b) H2O
asked
Apr 6, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
states of matter
cbse
+1
vote
1
answer
Arrange the following elements in order of increasing effective nuclear charge: **, As, P, N, Sb
asked
Apr 5, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
neet
class-11
cbse
+2
votes
1
answer
A gas is enclosed in a room. The temperature, pressure, density and number of *****
asked
Apr 4, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
states of matter
cbse
+1
vote
1
answer
Electrical resistivities of some substances, in ohm-meter, at 20°C are given as follows :
asked
Apr 4, 2019
in
Class 10
by
kratos
classification of elements and periodicity in properties
electricity and magnetism
cbse
csat
electricity
class-10
+2
votes
1
answer
The species Ar, K^+ and Ca^2+ contain the same number of electrons. In which order do their radii increase?
asked
Apr 4, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
neet
class-11
cbse
+3
votes
1
answer
Compare the following complexes with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units:
asked
Apr 4, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
chemical bonding and molecular structure
chemical bonding
class- 11
cbse
class-11
molecular structure
class-12
+1
vote
1
answer
Which hybrid orbital are used by carbon atoms in the following molecules. (a) CH3CH2OH b) CH3COOH .
asked
Apr 4, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
chemical bonding and molecular structure
class-11
cbse
+2
votes
1
answer
Draw and explain diagram showing hybridization in ethane.
asked
Apr 3, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
+2
votes
1
answer
Which element has twice as many electrons in its second shell as in its first shell?
asked
Apr 3, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
properties of elements
their variations
class-11
atomic theory
ntse
class-9
atomic structure
periodic classification
class-10
the periodic properties
icse
+3
votes
1
answer
If p : q = r : *; then show that: mp + np : q = mr + ns : *.
asked
Apr 3, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
ratio and proportion
class-8
class-11
alkali and alkaline earth metals
periodic classification of elements
+3
votes
1
answer
Determine the Hydrolysis of poly valent anions or cations.
asked
Apr 2, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
semiconductor electronics
class-11
solid state
class-12
+1
vote
1
answer
Define- Give their units.
asked
Apr 2, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
+1
vote
1
answer
The number of groups in the modern periodic table is
asked
Apr 1, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
properties of elements
structure of atom
class-11
atomic theory
class-9
class-10
periodic classification
periodic classification of elements
+1
vote
1
answer
Why are halogens strong oxidising agents?
asked
Apr 1, 2019
in
Class 12
by
kratos
classification of elements and periodicity in properties
cbse
p-block element
class-11
class-12
p - block element
+2
votes
1
answer
The atomic radius of F, Br, and I are 64, 114, and 138 pm respectively. From this information estimate a reasonable atomic radius of Cl.
asked
Mar 31, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
cbse
+1
vote
1
answer
Account for the following properties of gases on the basis of kinetic molecular theory of gases
asked
Mar 30, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
states of matter
cbse
+2
votes
1
answer
The first ionization potentials (eV) of Be and B respectively
asked
Mar 30, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
+2
votes
1
answer
why do noble gases have ****** atomic size than halogens?
asked
Mar 29, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
class-11
periodic classification of elements
+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
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