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VSEPR - LONE PAIRS - BOND PAIRS - MCQ
IIT JEE - NEET

The molecular shapes of SF₄, CF₄ and XeF₄ are:

(IIT JEE 2000)

a) the same with 2, 0 and 1 lone pairs of electrons on the central atom, respectively

b) the same with 1, 1 and 1 lone pairs of electrons on the central atom, respectively

c) different with 0, 1 and 2 lone pairs of electrons on the central atom, respectively

d) different with 1, 0 and 2 lone pairs of electrons on the central atom, respectively 

Logic:

Refer: how to find hybridization and number of lone pairs

Solution:

Conclusion:

Correct option is "b".

Related questions

1) The number of radial nodes present in the radial probability distribution curves for the orbital wave function with quantum number n=4, l=0 and m=0 is : 

(Eamcet - 2011-E) 

a) 4 

b) 3 

c) 2 

d) 1 

Solution:

 The number of radial nodes = (n - l - 1) = 4 - 0 - 1 = 3

 Note: Do not confuse. No need of "m" value to get the number.

Homework

1)