Q15 of 51 Page 361

What is the relationship between the members of following pairs of structures?

Are they structural or geometrical isomers or resonance contributors?


Compounds having the same molecular formula, the same constituition , and the same sequence of covalent bonds,but with different relative position of their atoms in space are called geometrical isomers.



In structures 1 and 2, the relative position of Deuterium (D) and hydrogen(H) in space are different. Hence, the given pairs represent geometrical isomers.


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14

Classify the following reactions in one of the reaction type studied in this unit.

(a) CH3CH2Br + HS–→ CH3CH2SH + Br–


(b) (CH3)2C = CH2HCl → (CH3)2ClC – CH3


(c) CH3CH2Br + HO–→ CH2 = CH2 + H2O + Br–


(d) (CH3)3C = CH2OH + HBr → (CH3)2CBrCH2CH3 + H2O

 15

What is the relationship between the members of following pairs of structures?

Are they structural or geometrical isomers or resonance contributors?


 15

What is the relationship between the members of following pairs of structures?

Are they structural or geometrical isomers or resonance contributors?


 16

For the following bond cleavages, use curved-arrows to show the electron flow and classify each as homolysis or heterolysis. Identify reactive intermediate produced as free radical, carbocation and carbanion.

(a)


(b)


(c)


(d)