Which are true statements among the following?

(1) PH5 and BiCl5 does not exist 

(2) pπ-dπ bonds are present in SO2 

(3) Electrons travel with speed of light 

(4) SeF4 and CH4 has same charge on central atom

(5) I3+ has bent geometry 

(a) 1,3 

(b) 1,2,5 

(c) 1,3,5

(d) 1,2,4 

Subtopic:  Hybridisation |
 62%
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In which molecule all atoms are coplanar?

1. CH4

2. BF3

3. PF3

4. NH3

Subtopic:  Hybridisation |
 79%
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Among the following Which is paramagnetic ?

1. Cl2O6

2. Cl2O7

3. Cl2O

4. ClO2

Subtopic:  Covalent Bond |
 66%
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The correct statement among the following for a compound having a higher dipole moment is-

1. Greater will the ionic nature. 2. Lesser will be the polarity.
3. Smaller will be the ionic nature. 4. None of the above.

 
Subtopic:  Polarity |
 79%
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NF3 is:

(1) non-polar compound 

(2) electrovalent compound 

(3) having low value of dipole moment than NH3

(4) having more dipole moment than NH3

Subtopic:  Polarity |
 81%
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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-

Subtopic:  Resonance & Nature of Compounds |
 76%
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PCl5 exists but NCl5 does not because:

1. Nitrogen has no vacant d-subshells .

2. NCl5 is unstable .

3. Nitrogen atom is much smaller than p .

4. Nitrogen is highly inert . 

Subtopic:  Acidic, Basic Character & Fajan's Rule |
 87%
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The bond angle between two hybrid orbitals is 105°. The % s character in orbital is-

1. Between 30-31% 2. Between  9- 12%
3. Between 25 -26% 4. Between 22-23%
Subtopic:  Hybridisation |
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Which bond angle would result in the maximum dipole moment for the triatomic molecule XY2 

1. 90°

2. 120°

3. 150°

4. 180°

Subtopic:  Polarity |
 57%
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The strongest hydrogen bond present among the following is-

1. OHS

2. SHO

3. FHF

4. FHO

Subtopic:  van der Waal Force & Hydrogen Bonding |
 78%
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