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Class XI Chemistry Classification of Elements 1
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Question 1
The correct order of acidic strength is
Question 2
The correct order of acidic strength is
Question 3
A sudden jump between the values of second and third ionization energies of an atom would be associated with the electronic configuration -
Question 4
Which one of the elements is most metallic
Question 5
Which of the following statement(s) is/are correct?
(I) The removal of one electron from Na+(g) ion requires more energy than that from Mg+(g)
(II) The extent of hydration of Na+ ion is more than that of K+ ion.
(III) Ionic radii follows the order for three elements (X, Y, Z) of same period belonging to group 1, 2 and 3 (i.e. I A, II A and III A) in the periodic table is X+ > Y2+ > Z3+.
(IV) With the increasing electronegativity (which increases with increasing positive charge), the basic strength of any elemental oxide decreases
(I) The removal of one electron from Na+(g) ion requires more energy than that from Mg+(g)
(II) The extent of hydration of Na+ ion is more than that of K+ ion.
(III) Ionic radii follows the order for three elements (X, Y, Z) of same period belonging to group 1, 2 and 3 (i.e. I A, II A and III A) in the periodic table is X+ > Y2+ > Z3+.
(IV) With the increasing electronegativity (which increases with increasing positive charge), the basic strength of any elemental oxide decreases
Question 6
Select correct statement(s).
Question 7
The hybrid state of B-atom in boron-hydride is sp2, while in its dimer it has sp3 hybrid state because
Question 8
Arrange NO2, 
and 
in order of decreasing bond angle?
and in order of decreasing bond angle?- 2522 attempts
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Dec 11JEE & BITSAT
