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,

Concept Questions :-

Hybridisation
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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 dsp

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Hybridisation
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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

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Hybridisation
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which is the incorrect about bond angles ?

1. NH3 > NF3

2. NF3 <  PF3

3. NH3 > PH3

4. NH3 > H2O

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Which molecules/ions are most paramagnetic?

1. B2

2. C2

3. O2+

4. O2-

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In which case observed dipole moment is greater than theoretical dipole moment?

1.

2.

3.

4.

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Which has linear shape but not sp hibridisation ?

(1) XeF2

(2) I3-

(3) CO2

(4) Both 1 and 2

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Hybridisation
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Which of the following structure is most expected for the molecule XeOF4 ?

(1) Tetrahedral

(2) Square pyramid

(3) Square planar

(4) Octahedral

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Hybridisation
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Which has highest bond energy ?

1. CO

2. CO+

3. N2

4. N2+

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Which has highest bond angle ?

(1) NH3

(2) H2O

(3) H2S

(4) PH3

Concept Questions :-

Hybridisation
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