Some Basic Principles of Organic Chemistry – 2

1) The percentage of s-character of the hybrid orbitals in ethane, ethene and ethyne are respectively
a) 50, 75, 100
b) 10, 20, 40
c) 25, 33, 50
d) 25, 50, 75

2) The number of pi-bonds in is
a) 2
b) 5
c) 4
d) 3

3) The compound which contains all the four carbon atoms is
a) 2, 3-Dimethylpentane
b) 2,3,3- trimethylpentane
c) 2, 3, 4-Trimethylpentane
d) 3, 3-Dimethylpentane

4) The hydrolysis of trichloromethane with aqueous KOH gives
a) Methanol
b) Chloral
c) Acetylene
d) Potassium formate

5) Which of the following will not give the iodoform test?
a) Ethanol
b) Ethanal
c) Isopropyl alcohol
d) Benzyl alcohol.

6) The reagent that cannot distinguish aldehydes and ketones is
a)
b) Fehling’s solution.
c)
d) Borshe’s reagent

7) Dipole moment is shown by
a) 1, 4 – dichlorobenzene
b) Cis – 1, 2 – dichloro ethene
c) Trans – 1, 2 – dichloroethene
d) Trans – 1, 2 – dichloro – 2 – pentene


Answer

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