Hydrocarbons · Question 8

Baeyer's reagent is :

1. Acidic potassium permanganate solution
2. Acidic potassium dichromate solution
3. Cold, dilute, aqueous solution of potassium permanganate
4. Hot, concentrated solution of potassium permanganate

The alkane that can be oxidized to the corresponding alcohol by KMnO4 as per the equation [figure] is, when :

1. R1 = H; R2 = H; R3 = H
2. R1 = CH3; R2 = CH3; R3 = CH3
3. R1 = CH3; R2 = H; R3 = H
4. R1 = CH3; R2 = CH3; R3 = H

Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is :

1. 32
2. 30
3. 18
4. 16

Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is

1. 3-Methylbut-1-ene
2. 2-Methylbut-1-ene
3. 2-Methylbut-2-ene
4. Pent-2-ene

The decreasing order of boiling points of the following alkanes is : Choose the correct answer from the options given below :

1. A > E > C > B > D
2. A > C > E > D > B
3. C > D > A > E > B
4. A > E > B > C > D

The incorrect method for the synthesis of alkenes is

1. Treating vicinal dihalides with Zn metal
2. Treating of alkynes with Na in liquid NH3
3. Heating alkyl halides with alcoholic KOH
4. Treating alkyl halides in aqueous KOH solution

The major product of the following chemical reaction is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

CH3CH2COO-Na+ [Heat]NaOH, +? CH3CH3 + Na2CO3 Consider the above reaction and identify the missing reagent/chemical.

1. DIBAL-H
2. B2H6
3. Red Phosphorus
4. CaO

Which of the following alkane cannot be made in good yield by Wurtz reaction?

1. 2, 3-Dimethylbutane
2. n-Heptane
3. n-Butane
4. n-Hexane

An alkene on ozonolysis gives methanal as one of the products, Its structure is :

1. [figure]
2. [figure]
3. [figure]
4. [figure]