The number of sigma bonds in P4O10 is 

1. 6

2. 16

3. 20

4. 7

Subtopic:  Covalent Bond |
 82%
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Among the following iso-structural compounds, the one that has the highest lattice energy is: 

1. LiCl

2. MgO

3. NaCl

4. LiF

Subtopic:  Lattice & Hydration Energy |
From NCERT
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sbonded molecule MX3 is T-shaped. The number of non-bonding pairs of electrons is :

1. 0

2. 2

3. 1

4. Can be predicted only if atomic number of M is known,

 

 

Subtopic:  Hybridisation |
 73%
From NCERT
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In a chemical change from PCl3             PCl5, the hybrid state of P changes from:
1. sp2 to sp3
2. sp3 to sp2
3. sp3 to sp3d
4. sp3 to dsp2

Subtopic:  Hybridisation |
 90%
From NCERT
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The geometrical arrangement and shape of I3- are respectively

1. Trigonal bipyramidal geometry, linear shape

2. Hexagonal structure, linear shape

3. Triangular planar geometry, triangular shape

4. Tetrahedral geometry, pyramidal shape

Subtopic:  Hybridisation |
 75%
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Mark the incorrect order of the bond angle:

1. NH3 > NF3

2. NF3 <  PF3

3. NH3 > PH3

4. NH3 > H2O

Subtopic:  Polarity |
 53%
From NCERT
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Which molecules/ions are most paramagnetic?

1. B2

2. C2

3. O2+

4. O2-

Subtopic:  M.O.T |
From NCERT
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In which case observed dipole moment is greater than theoretical dipole moment?

1.    
2.   
3.   
4.   
Subtopic:  Polarity |
 67%
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Which has linear shape but not sp hibridisation ?

1. XeF2

2. I3-

3. CO2

4. Both 1 and 2

Subtopic:  Hybridisation |
 59%
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Which has highest bond energy ?

1. CO

2. CO+

3. N2

4. N2+

Subtopic:  M.O.T |
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