Question

Which one of the following has the regular tetrahedral structure ?
( Atomic nos. : $$B = 5,S = 16,Ni = 28,Xe = 54$$       )

A. $$BF_4^ - $$  
B. $$S{F_4}$$
C. $$Xe{F_4}$$
D. $${\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$
Answer :   $$BF_4^ - $$
Solution :
$$Xe{F_4}\left( {s{p^3}{d^2}\,{\text{square planar}}} \right),$$
$${\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$  $$\left( {ds{p^2}\,\,{\text{square}}\,{\text{planar}}} \right),$$
$$BF_4^ - \left( {s{p^3}\,{\text{tetrahedral}}} \right),\,\,S{F_4}\left( {s{p^3}d\,\,{\text{see}}\,\,{\text{saw}}\,\,{\text{shaped}}} \right)$$

Releted MCQ Question on
Inorganic Chemistry >> Chemical Bonding and Molecular Structure

Releted Question 1

The compound which contains both ionic and covalent bonds is

A. $$C{H_4}$$
B. $${H_2}$$
C. $$KCN$$
D. $$KCl$$
Releted Question 2

The octet rule is not valid for the molecule

A. $$C{O_2}$$
B. $${H_2}O$$
C. $${O_2}$$
D. $$CO$$
Releted Question 3

Element $$X$$ is strongly electropositive and element $$Y$$ is strongly electronegative. Both are univalent. The compound formed would be

A. $${X^ + }{Y^ - }$$
B. $${X^ - }{Y^{ + \,}}$$
C. $$X - Y$$
D. $$X \to Y$$
Releted Question 4

Which of the following compounds are covalent?

A. $${H_2}$$
B. $$CaO$$
C. $$KCl$$
D. $$N{a_2}S$$

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Chemical Bonding and Molecular Structure


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