Short Answer TypeAlkanes and alkynes do not exhibit geometrical isomerism. Explain.
Alkanes contain carbon-carbon single bond and there is free rotation around single bond or sigma bond. Alkynes contain triple bond around which the rotation is hindered but the molecule is linear. Therefore, the question of fixed arrangement does not arise. Hence alkanes and alkynes do not show geometrical isomerism.
Long Answer TypeHow will you explain that there exists two varieties of 1, 2,-dichloroethene while there is only one type of 1, 2-dichloroethane?
Short Answer TypeDraw cis and trans isomers of the following compounds. Also, write their IUPAC names:
(i) CHCl = CHCl
(ii) C2H5CCH3 = CCH3C2H5
Which of the following compounds will show cis-trans isomerism?
(i)(CH3)2C = CH-C2H5
(ii) CH2 = CBr2
(iii) C2H5CH = CH-CH2
(iv) CH3CH = CClCH3
Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?
What happens when 2-Bromobutane is heated with alcoholic KOH. Account for the product formed.
What happens when butan-2-ol is heated with concentrated H2SO4. Account for the product formed.
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