In terms of polar character which of the following order is correct ?

(a) NH3<H2O<HF<H2S    (b) H2S<NH3<H2O<HF

(c) H2O<NH3<H2S<HF    (d) HF<H2O<NH3<H2S

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The correct order or boiling point is:

(a) T2<D2<H2                                 

(b) n-pentane<neo pentane

(c) Xe<Ar<He

(d) m-nitrophenol>o-nitrophenol

Concept Questions :-

Types of Bonding
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The correct order of 'SO' bond length is:

(a) SO32->SO42->SO2>SO2     (b) SO32>SO24>SO2>SO3

(c) SO43>SO32>SO2>SO3    (c) SO42>SO32>SO3>SO2

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The linear structure is possessed by :

(a) SnCl2

(b) NCO-

(c) NO2+

(d) CS2

 

Concept Questions :-

Hybridisation
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Cis-butene dioic acid Ka1{-H+}X-1Ka2{-H+}X22-

Trans-butene dioic acid Ka1'{-H+}Y-1Ka2·{-H+}Y22-

The incorrect statement regarding above the information is:

(a) X22- species is more basic than Y22- species 

(b) X1- species is more basic than Y1- species

(c) Ka1 is greater than K'a2 

(d) K'a2 is greater than K'a2

Concept Questions :-

Acid, Base and Fajan's Rule
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In which of the following compounds octet is complete and incomplete for all atoms:

                 Al2Cl6      Al2CH36       AlF3      Dimer of BeCl2     Dimer of BeH2                               

(a)                  IC               IC             IC                     C                         C

(b)                  C                IC             IC                     C                         IC

(c)                  C                IC             C                      IC                        IC

(d)                 IC                C              IC                    IC                        IC

where C denotes Complete and IC incomplete.

Concept Questions :-

Covalent Bonding
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In which of the following metal of metal bond is present?

(a) Cupric chloride            (b) stannous chloride

(c) mercurous chloride      (d) mercuric chloride

Concept Questions :-

Types of Bonding
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Which of the following is not best representation of the H-bond?

(a)                        (b) 

(c)                     (d) None of these

Concept Questions :-

Hydrogen Bonding
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The pair of elemnts which on combination are most likely to form an ionic compound is : 

(a) Na and Ca

(b) K and O2

(c) O2 and Cl2

(d) Al and I2

Concept Questions :-

Ionic Bonding
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The type of molecular forces of attraction present in the following compound is:

(a) Intermolecular H-bonding                   (b) Intramolecular H-bonding

(c) van der Waal's force                           (d) All of these

 

Concept Questions :-

Hydrogen Bonding
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