Hydrocarbons

Isomeric hydrocarbons negative Baeyer's test (Molecular formula C9H12) The total number of isomers from above with four different non-aliphatic substitution sites is -

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

The product (A) formed in the following reaction sequence is [figure]

1. CH3-CH2- OH |CH-CH2-NH2
2. CH3-CH2- NH2 |CH-CH2-NH2
3. CH3- CH3 | OH |C-CH2-NH2
4. CH3- CH3 | NH2 |C-CH2-OH

Following are the four molecules "P", "Q", "R" and "S". Which one among the four molecules will react with H-Br(aq) at the fastest rate? [figure]

1. Q
2. S
3. P
4. R

Identify correct statement/s : Choose the correct answer from the options given below :

1. A, C and D only
2. A, B and E only
3. A and C only
4. A only

Propane molecule on chlorination under photochemical condition gives two di-chloro products, “x” and “y”. Amongst “x” and “y”, “x” is an optically active molecule. How many tri-chloro products (consider only structural isomers) will be obtained from “x” when it is further treated with chlorine under the photochemical condition?

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

Match List - I with List - II Choose the correct answer from the options given below :

1. A-III, B-IV, C-I, D-II
2. A-I, B-IV, C-III, D-II
3. A-III, B-II, C-I, D-IV
4. A-II, B-II, C-I, D-IV

A compound ' X ' absorbs 2 moles of hydrogen and ' X ' upon oxidation with KMnO4 | H+ gives [figure] The total number of bonds present in the compound ' X ' is .

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

When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major product is :

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

The compound with molecular formula C6H6, which gives only one monobromo derivative and takes up four moles of hydrogen per mole for complete hydrogenation has electrons.

The incorrect statement regarding ethyne is

1. The carbon-carbon bond in ethyne is weaker than that in ethene
2. Both carbons are sp hybridised
3. The C-C bond in ethyne is shorter than that in ethene
4. Ethyne is linear

Number of compounds from the following which cannot undergo Friedel-Crafts reactions is: toluene, nitrobenzene, xylene, cumene, aniline, chlorobenzene, m-nitroaniline, m-dinitrobenzene

The major product of the following reaction is P. CH3C C - CH3 [ (ii) dil. KMnO4 \ 273 K](i) Na/liq. NH3 'P' Number of oxygen atoms present in product 'P' is . (nearest integer)

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

Consider the given chemical reaction : [figure] Product "A" is :

1. picric acid
2. oxalic acid
3. adipic acid
4. acetic acid

Which of the following compound will most easily be attacked by an electrophile?

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

Total number of deactivating groups in aromatic electrophilic substitution reaction among the following is . [figure]

In the given reactions identify A and B [figure] CH3-C C-CH3 + H2 Na/Liquid NH3 “B”

1. A : n-Pentane B : Cis - 2 - butene
2. A : 2-Pentyne B : Cis-2-butene
3. A : n-Pentane B : trans-2-butene
4. A : 2-Pentyne B : trans-2-butene

The set of meta directing functional groups from the following sets is :

1. -CN, -NH2, -NHR, -OCH3
2. -CN, -CHO, -NHCOCH3, -COOR
3. -NO2, -NH2, -COOH, -COOR
4. -NO2, -CHO, -SO3H, -COR

Number of alkanes obtained on electrolysis of a mixture of CH3COONa and C2H5COONa is .

Major product of the following reaction is - [figure]

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

The correct order of reactivity in electrophilic substitution reaction of the following compounds is : [figure]

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

Number of isomeric products formed by monochlorination of 2-methylbutane in presence of sunlight is .

Compound A formed in the following reaction reacts with B to give the product C. Find out A and B. CH3-C CH + Na A B CH3- (C)C C-CH2- CH3 |CH2 + NaBr

1. A = CH3-C -C Na+, B = CH3-CH2-CH2-Br
2. A = CH3-CH=CH2, B = CH3-CH2-CH2-Br
3. A = CH3-C -C Na+, B = CH3-CH2-CH3
4. A = CH3-CH2-CH3, B = CH3-C CH

Identify product A and product B : [figure]

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

[figure] Consider the given reaction. The total number of oxygen atom/s present per molecule of the product (P) is .

Which of the following reaction is correct?

1. C2H5CONH2 + Br2 + NaOH C2H5CH2NH2 + Na2CO3 + NaBr + H2O
2. [figure]
3. [figure]
4. CH3CH2CH2NH2 [H2O]HNO2, 0 C CH3CH2OH + N2 + HCl

Among the following, total number of meta directing functional groups is (Integer based) -OCH3, -NO2, -CN, -CH3, -NHCOCH3, -COR, -OH, -COOH, -Cl