Organic chemistry: Cyclic Hydrocarbons – Quiz 8

written by gogorabei | June 10, 2023

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#1. (30) Number of bonds in toluene is ….

(a) 6 σ bonds, 3 π bonds

(a) 6 σ bonds, 3 π bonds

(b) 9 σ bonds, 3 π bonds.

(b) 9 σ bonds, 3 π bonds.

(c) 9σ bonds, 6 π bonds.

(c) 9σ bonds, 6 π bonds.

(d) 15 σ Bonds, 3 π bonds

(d) 15 σ Bonds, 3 π bonds

#2. (32) The detergent industry depends mainly on ………… compounds after the treatment by caustic soda.

(a) the aliphatic sulphonic acid

(a) the aliphatic sulphonic acid

(b) The Aromatic sulphonic acid

(b) The Aromatic sulphonic acid

(c) the salts of the aliphatic sulphonic acid

(c) the salts of the aliphatic sulphonic acid

(d) the salts of the aromatic sulphonic acid

(d) the salts of the aromatic sulphonic acid

#3. (33) All of the following represent the aromatic benzene, except ……….

(a) it reacts by addition and substitution.

(a) it reacts by addition and substitution.

(b) the bond length between the carbon atoms is intermediate between the length of single and double bonds.

(b) the bond length between the carbon atoms is intermediate between the length of single and double bonds.

(c)It is Considered as cyclohexane, which contains 6 carbon atoms.

(c)It is Considered as cyclohexane, which contains 6 carbon atoms.

(d) the single and double bonds substitute continually

(d) the single and double bonds substitute continually

#4. (34) The general formula of aromatic benzene and toluene is ……….

(a)CnH2n-6.

(a)CnH2n-6.

(b) CnHn-6

(b) CnHn-6

(c) CnH2n-2

(c) CnH2n-2

(d) CnH2n

(d) CnH2n