question_answer

Assertion: Each carbon in ethylene molecule is \[s{{p}^{2}}\] hybridised.

Reason: The \[H-C-H\] bond angle in ethylene molecule is 120°.

Read the assertion and reason carefully to mark the correct option out of the options given below:

A)  If both assertion and reason are true and the reason is the correct explanation of the assertion.

B)  If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Each carbon atom in ethylene is attached to two hydrogen atoms by single covalent bonds and to another carbon atoms by a double bond. Since each carbon is attached to three other atoms, it uses \[s{{p}^{2}}\] hybrid orbitals and an unhybridised \[{{p}_{Z}}\] orbital to form its bond. Each \[C-H\] bond is a \[\sigma \] bond resulting from the overlap of \[1s\] orbital of hydrogen atom and \[s{{p}^{2}}\] orbital of a carbon atom. One \[C-C\] bond results from the linear overlap of \[s{{p}^{2}}\] orbitals one from each carbon atom. One \[\pi \]bond results from the lateral overlap of two unhybridised \[{{p}_{Z}}\] orbitals, one from each carbon atom.       

C)  If assertion is true but reason is false.

D)  If the assertion and reason both are false.

E)  If assertion is false but reason is true.