Hydrocarbons

The number of chlorine atoms present in the organic products X and Y of the following reactions, respectively are : [figure]

1. 3 and 3
2. 6 and 6
3. 6 and 3
4. 3 and 6

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

Among the following, the compound having conjugated double bonds is

1. hepta-1,6-diene
2. hepta-1,3-diene
3. hepta-1,4-diene
4. hepta-1,5-diene

Consider the following reaction sequences and choose the correct option. [figure]

1. M and N are stereoisomers
2. K and L are geometrical isomers
3. K and L are enantiomers
4. M and N are geometrical isomers

Which one of the following reactions does NOT give benzene as the product?

1. H-C C-H [at 873 K]red hot Iron Tube
2. [figure]
3. [figure]
4. [figure]

Which one of the following compounds does not decolourize bromine water?

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

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

For the given reaction: [figure] 'P' is

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

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]

Among the following, the reaction that proceeds through an electrophilic substitution, is :

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

The most suitable reagent for the following conversion, is : [figure]

1. Zn / HCl
2. Hg2+/H+, H2O
3. Na / liquid NH3
4. H2, Pd/C, quinoline

An alkene “A” on reaction with O3 and Zn + H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is :

1. H3C-CH2- Cl | CH3 |C-CH3
2. H3C- Cl |CH- CH3 | CH3 |CH
3. Cl-CH2-CH2- CH3 | CH3 |CH
4. H3C-CH2- CH2Cl |CH-CH3

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is

1. CH CH
2. CH2 = CH2
3. CH3 - CH3
4. CH4

Predict the correct intermediate and product in the following reaction : H3C-C CH [HgSO4]H2O, H2SO4 (A)Intermediate (B)Product

1. A : H3C- OH |C=CH2 B : H3C- SO4 |C=CH2
2. A : H3C- O \|C-CH3 B : H3C-C CH
3. A : H3C- OH |C=CH2 B : H3C- O \|C-CH3
4. A : H3C- SO4 |C=CH2 B : H3C- O \|C-CH3

Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be

1. unchanged
2. doubled
3. faster
4. slower

In the reaction H-C CH [(ii) CH3CH2Br](i) NaNH2/liq. NH3 X [(ii) CH3CH2Br](i) NaNH2/liq. NH3 Y, X and Y are

1. X = 2-Butyne, Y = 2-Hexyne
2. X = 1-Butyne, Y = 2-Hexyne
3. X = 1-Butyne, Y = 3-Hexyne
4. X = 2-Butyne, Y = 3-Hexyne

Which of the following can be used as halide component for Friedel-Crafts reaction?

1. Chlorobenzene
2. Bromobenzene
3. Chloroethene
4. Isopropyl chloride

Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction ?

1. [figure]
2. H3C- H2 |C-CH2OH
3. H2C=C=O
4. H3C- H2 |C-CH2Br

In the given reaction, [figure] the product P is

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

The compound that will react most readily with gaseous bromine has the formula

1. C3H6
2. C2H2
3. C4H10
4. C2H4

In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1-methylcyclohexane. The possible alkene is

1. [figure] (A)
2. [figure] (B)
3. (A) and (B)
4. [figure]