Hydrocarbons · Question 21

Choose the correct set of reagents for the following conversion. [figure]

1. Cl2/ anhy. AlCl3; Br2/Fe; alc. KOH
2. Cl2/Fe; Br2/ anhy. AlCl3; aq. KOH
3. Br2/Fe; Cl2, ; alc. KOH
4. Br2/ anhy. AlCl3; Cl2, ; aq. KOH

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

1. Statement I is false but Statement II is true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Both Statement I and Statement II are true

Identify the structure of the final product (D) in the following sequence of the reactions : [figure] Total number of sp2 hybridised carbon atoms in product D is .

Predict the major product of the following reaction sequence: [figure]

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

Consider the following molecule(X). [figure] The major product formed when the given molecule (X) is treated with HBr (1 eq) is :

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

Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis?

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

An optically active alkyl halide C4H9Br [A] reacts with hot KOH dissolved in ethanol and forms alkene [B] as major product which reacts with bromine to give dibromide [C]. The compound [C] is converted into a gas [D] upon reacting with alcoholic NaNH2. During hydration 18 gram of water is added to 1 mole of gas [D] on warming with mercuric sulphate and dilute acid at 333 K to form compound [E]. The IUPAC name of compound [E] is :

1. Butan-2-ol
2. But-2-yne
3. Butan-2-one
4. Butan-1-al

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

A molecule (P) on treatment with acid undergoes rearrangement and gives (Q). (Q) on ozonolysis followed by reflux under alkaline condition gives (R). The structure of (R) is given below. [figure] The structure of (P) is

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

Identify product [A], [B] and [C] in the following reaction sequence. CH3-C CH [H2]Pd/C [A] [(ii) Zn, H2O](i) O3 [B] + [C]

1. [A]: CH3-CH=CH2, [B]: CH3CHO, [C]: CH3CH2OH
2. [A]: CH3-CH=CH2, [B]: CH3CHO, [C]: HCHO
3. [A]: CH3CH2CH3, [B]: CH3CHO, [C]: HCHO
4. [A]: CH2=CH2, [B]: H3C- O \|C-CH3, [C]: HCHO