The correct statement about hydrolysis of BCl3 and NCl3 is-

1. NCl3 is hydrolysed and gives HOCl but BCl3 is not hydrolysed

2. Both NCl3 and BCl3 on hydrolysis gives HCl

3. NCl3 on hydrolysis gives HOCl  but BCl3 gives HCl

4. Both NCl3 and BCl3 on hydrolysis gives HOCl

Subtopic:  Acidic, Basic Character & Fajan's Rule | Polarity |
 51%
From NCERT
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The correct sequence of the polarity of the following molecule is
a. Benzene                         

b. Inorganic Benzene

c. PCl3F2                            

d. PCl2F3

a b c d
1. P NP NP P
2. NP NP NP P
3. NP P NP P
4. NP P P NP

(Where P=polar, NP=non-polar)

Subtopic:  Polarity |
 53%
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The incorrect order of boiling point is-

1. H2O > CH3OH             

2. NCH33< NHCH32

3. H3PO4> Me3PO4         

4. CH3N3> HN3

Subtopic:  Polarity | van der Waal Force & Hydrogen Bonding |
 53%
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When the substances Si, KCl, CH3OH and C2H6 are arranged in order of increasing melting point , what is the correct order?

(1) Si, KCl ,CH3OH ,C2H6

(2) CH3OHC2H6, Si ,KCl 

(3) KCl, Si, C2H6CH3OH

(4) C2H6, CH3OH , KCl , Si

Subtopic:  Lattice & Hydration Energy |
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Iodine molecules are held in the solid lattice by............

(1) London forces                     (2) dipole-dipole interactions

(3) Covalent bonds                   (4) coulombic force

Subtopic:  van der Waal Force & Hydrogen Bonding |
 60%
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Which substance has the highest melting point ? 

(a) CO

(b) CO2

(d) SiO2

(d) P2O5

Subtopic:  Lattice & Hydration Energy |
 54%
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Nodal planes of π-bond(s) in CH2=C=C=CH2 are located in:

(1) all are in molecular plane

(2) two in a molecular plane and in a plane peerpendicular to moleclar plane which contains C-C σ-bond

(3) one in molecular plane and two in plane perpendicular to molecular plane which bisects C-C σ-bonds

(4) two in a molecular plane and one in a plane perpendicular to molecular plane which bisects C-C σ-bonds at right angle.

Subtopic:  Hybridisation |
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The hybridisation of the  central  atom will change when: 

1. NH3 combines with H+

2. H3BO3combines with OH-

3. NH3 forms NH2-

4. H2O combines with H+

Subtopic:  Hybridisation |
 68%
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Species having maximum 'CIO' bond order is-

1. CIO3-                      
2. CIO3          
3. CIO2                        
4. CIO2-

Subtopic:  Polarity |
 56%
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Which of the following have X-O-X linkage?

(where X is Central atom)

(i) Cr2O72-                            (ii) S2O32-                       

(iii) Pyrosilicate                     (iv) Hyponitrous Acid

(1) (i) (iii)                                             

(2) (iii) (iv)

(3) (i) (iii) (iv)                                       

(4) (i) (ii)

Subtopic:  Types of Chemical Bond |
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