Which species does not exist?

(a) SnCl62-

(b) GeCl62-

(c) CCl62-

(d) SiCl62-

Concept Questions :-

Hybridisation
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Which is paramagentic?

(a) Cl2O6

(b) Cl2O7

(c) Cl2O

(d) ClO2

Concept Questions :-

Covalent Bonding
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Greater the dipole moment:

(a) greater is the ionic nature 

(b) lesser the polarity 

(c) smaller is the ionic nature 

(d) none of these 

Concept Questions :-

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NF3 is:

(a) non-polar compound 

(b) electrovalent compound 

(c) having low value of dipole moment than NH3

(d) having more dipole moment than NH3

Concept Questions :-

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Polarization of electrons in acrolein may be written as: 

(a) Cδ-H2=CH-Cδ+H=O

(b)Cδ-H2=CH-CH=Oδ+

(c) Cδ-H2=Cδ+H-CH=O

(d) Cδ+H2=CH-CH=Oδ-

Concept Questions :-

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PCl5 exists but NCl5 does not because:

(a) nitrogen has no vacant 2d-orbitals 

(b)NCl5 is unstable 

(c) nitrogen atom is much smaller than p

(d) nitrogen is highly inert 

Concept Questions :-

Acid, Base and Fajan's Rule
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Bond angle between two hybrid orbitals is 105°.% S character orbital is:

(a) between 30-31%

(b) between 19-20%

(c) between 25 -26%

(d) between 22-23%

Concept Questions :-

Hybridisation
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Which bond angle would result in the maximum dipole moment for the triatomic molecule XY2 shown below?

(a) 90°

(b) 120°

(c) 150°

(d) 180°

Concept Questions :-

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The hydrogen bonding is strongest in:

(a) OHS

(b) SHO

(c) FHF

(d) FHO

Concept Questions :-

Hydrogen Bonding
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The ionisation energy will be maximum for the process:

(a) BaBa2+

(b) BeBe2+

(c) CsCs+

(d) LiLi+

Concept Questions :-

Ionic Bonding
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