Question
What are the hybridization and shapes of the following molecules?
$$\eqalign{
& \left( {\text{i}} \right)C{H_3}F \cr
& \left( {{\text{ii}}} \right)HC \equiv N \cr} $$
A.
$$\left( {\text{i}} \right)s{p^2},$$ trigonal planar; $$\left( {{\text{ii}}} \right)s{p^3},$$ tetrahedral
B.
$$\left( {\text{i}} \right)s{p^3},$$ tetrahedral ; $$\left( {{\text{ii}}} \right)sp,$$ linear
C.
$$\left( {\text{i}} \right)sp,$$ linear ; $$\left( {{\text{ii}}} \right)s{p^2},$$ trigonal planar
D.
$$\left( {\text{i}} \right)s{p^2},$$ trigonal planar, $$\left( {{\text{ii}}} \right)s{p^2},$$ trigonal planar
Answer :
$$\left( {\text{i}} \right)s{p^3},$$ tetrahedral ; $$\left( {{\text{ii}}} \right)sp,$$ linear
Solution :
$$\left( {\text{i}} \right)C{H_3}F{\text{ - }}s{p^3}$$ hybridised carbon, tetrahedral shape $$\left( {{\text{ii}}} \right)HC \equiv N{\text{ - }}sp$$ hybridised carbon, linear shape.