Classification of Hydrocarbons

Q. The nature of the aqueous solution after Kolbe electrolysis is:

1. Acidic
2. Alkaline
3. Neutral
4. May be acidic, alkaline or neutral

Q. Which of the following has the least octane number?

1. Octane
2. Cetane
3. 2, 2, 4-trimethyl pentane
4. n-heptane

Q. In the preparation of alkanes, a concentrated aqueous solution of sodium or potassium salts of saturated carboxylic acid are subjected to :

1. Hydrolysis
2. Oxidation
3. Hydrogenation
4. Electrolysis

Q. The IUPAC name of the compound

1. 1-chloro-4-methoxybutan-2-ol
2. 1-chloro-4-methoxybutan-3-ol
3. 1-chloro-4-ethoxybutan-2-ol
4. 2-chloro-4-methoxybutan-2-ol

Q.

Calculate the total number of cyclic ether (including stereo) having formula ${\mathrm{C}}_4{\mathrm{H}}_8\mathrm{O}$?

Q. For the given reaction :
$\text{2-phenylacetic acid +NaOH}\stackrel{CaO,△}{⟶}\text{Product}$
The product is:

1. Benzoic acid
2. Toluene
3. Phenol
4. Benzene

Q. $C{H}_{3}COO{C}_2{H}_{5}and{C}_2{H}_{5}COOC{H}_3$ exhibit?

1. Metamerism
2. Functional isomerism
3. Position isomerism
4. Tautomers

Q. Which of the following reactants is suitable for preparation of methane and ethane by using one step only?

1. $H_{2}C=C{H}_2$
2. $C{H}_{3}OH$
3. $C{H}_3-Br$
4. $C{H}_3-C{H}_2-OH$

Q. In the case homologous series of alkanes, which one of the following statements is incorrect

1. The members of the series are isomers of each other.
2. The members of the series have similar chemical properties.
3. The members of the series have the general formula $C_n{H}_{2n+2},$where 'n' is an integer
4. The difference between any two successive members of the series corresponds to 14 units of relative atomic mass.

Q. Which of the following alkyl halides can not be reduced using Zn, dil. HCl?

1. alkyl fluoride
2. alkyl chloride
3. alkyl bromide
4. alkyl iodide

Q. An alkane $C_6{H}_{14}\left(X\right)$ can be obtained by the reduction of five different alkyl halides $C_6{H}_{13}Cl$ (only structural isomers) with $Zn-dil.HCl.$ The IUPAC name of X satisfying above condition is

1. Hexane
2. 2-methylpentane
3. 2, 3-dimethylbutane
4. 2, 2-dimethyl butane

Q. Find A in the given reaction ?
$C{H}_{3}COOH+NaOH\underset{CaO}{\overset{△}{\to }}A+N{a}_{2}C{O}_3$

1. $C{H}_4$
2. $C_2{H}_6$
3. $C{H}_{3}COONa$
4. All of the above.

Q.

In the case homologous series of alkanes, which one of the following statements is incorrect

1. The members of the series are isomers of each other

2. The members of the series have similar chemical properties

3. The difference between any two successive members of the series corresponds to 14 unit of relative atomic mass

4. The members of the series have the general formula $C_{n}H{2}_{n+2}$ where n is an integer

Q. The number of possible cyclic isomers (excluding optical isomers) of $C_3{H}_{4}C{l}_2$ is:

1. 2
2. 3
3. 4
4. 5

Q.

Name the organic compound prepared in the following reaction:

${\mathrm{CH}}_3\mathrm{COONa}+\hspace{0.17em}\mathrm{NaOH}\stackrel{\mathrm{CaO}}{\to }$