The relative stability order of carbanions CH&equiv;C-, CH 3 - and CH 2 =CH - is ____________

CH ≡ C - > CH 2 = CH - > CH 3 -

CH 3 - > CH 2 = CH - > CH ≡ C -

CH ≡ C - < CH 2 = CH - > CH 3 -

CH 2 = CH - < CH ≡ C - < CH 3 -

The IUPAC name of the following compounds is

3-Bromocyclohexanecarboxylic acid

1-Bromocyclohexane carboxylic acid

Chemistry - Organic Chemistry Basic Principles Techniques - Quiz-4

The number of primary carbon atoms in the following compound are-

0%

6
0%

2
0%

4
0%

3

4-methylpent-2-ene is achiral because it has:

0%

a centre of symmetry
0%

a plane of symmetry
0%

symmetry at C 4 carbon
0%

both centre and a plane of symmetry

The (R)- and (S)-enantiomers of an optically active compound differ in

0%

their solubility in a chiral solvent
0%

their reactivity with a chiral reagent
0%

their optical rotation of plane polarised light
0%

their melting points

The cylindrical shape of an alkyne is due to the presence of-

0%

Three sigma C-C bonds
0%

Three π C-C bonds
0%

Two sigma C-C and one π C-C bonds
0%

One sigma C-C and two π C-C bonds

What is decreasing order of basicity of 1°, 2° and 3° ethyl amines and ammonia?

0%

NH₃>C₂H₅NH₂>(C₂H₅)₂NH>(C₂H₅)₃N
0%

(C₂H₅)₃N>(C₂H₅)₂NH>C₂H₅NH₂> NH₃
0%

(C₂H₅)₃NH>C₂H₅NH₂>(C₂H₅)₃N>NH₃
0%

(C₂H₅)₂NH>(C₂H₅)₃N>C₂H₅NH₂>NH₃

The shortest C-C bond distance is found in

0%

Diamond
0%

Ethane
0%

Benzene
0%

Acetylene

Which of the following is more basic than aniline?

0%

Diphenylamine
0%

Triphenylamine
0%

p-nitroaniline
0%

Benzylamine

Which one of the following has the shortest carbon-carbon bond length?

0%

Benzene
0%

Ethene
0%

Ethyne
0%

Ethane

Which one of the following compounds is most acidic?

Which of the following represents the correct order of acidity in the given compounds?

0%

F ${CH}_{2}$ COOH > ${CH}_{3}$ COOH > Br ${CH}_{2}$ COOH > Cl ${CH}_{2}$ COOH
0%

Br ${CH}_{2}$ COOH > Cl ${CH}_{2}$ COOH > F ${CH}_{2}$ COOH > ${CH}_{3}$ COOH
0%

F ${CH}_{2}$ COOH > Cl ${CH}_{2}$ COOH > Br ${CH}_{2}$ COOH > ${CH}_{3}$ COOH
0%

${CH}_{3}$ COOH > Br ${CH}_{2}$ COOH > Cl ${CH}_{2}$ COOH > F ${CH}_{2}$ COOH

Among the following the strongest acid is

0%

CH₃COOH
0%

CH₂ClCH₂COOH
0%

CH₂ClCOOH
0%

CH₃CH₂COOH

The distance between two adjacent carbon atoms is largest in

0%

Benzene
0%

Ethene
0%

Butane
0%

Ethyne

Increasing order of acidic strength among p-methoxyphenol (I), p-methylphenol (II) and p-nitrophenol (III) is-

0%

III, I, II
0%

II, I, III
0%

III, II, I
0%

I, II, III

Which of the following represent the correct decreasing order of acidic strength of following?

(i) Methanoic acid

(ii) Ethanoic acid

(iii) Propanoic acid

(iv) Butanoic acid

0%

(i)>(ii)>(iii)>(iv)
0%

(ii)>(iii)>(iv)>(i)
0%

(i)>(iv)>(iii)>(ii)
0%

(iv)>(i)>(iii)>(ii)

The IUPAC name of the compound,

is-

0%

1, 3-Dibromo-3-methylbutane
0%

3-Methyl-1,2-bromobutane
0%

3-Methyl-1,3-bromopropane
0%

None of the above

Polar solvent favours keto form while non-polar solvent faours enol form. Which has maximum enolic content in CCl₄?

0%

$O O | | | | C H_{3} - C - C H_{2} - C - C H_{3}$
0%

$O O | | | | C H_{3} - C - C H_{2} - C - H$
0%

$O | | C H_{3} - C - C H_{2} - C O O C_{2} H_{5}$
0%

$O | | C H_{3} - C - C H_{2} C H_{3}$

Maximum enol content is in

The relative stability order of carbanions CH≡C-, CH₃- and CH₂=CH^- is ____________

0%

$CH \equiv C^{-} > {CH}_{2} = {CH}^{-} > {CH}_{3}^{-}$
0%

${CH}_{3}^{-} > {CH}_{2} = {CH}^{-} > CH \equiv C^{-}$
0%

$CH \equiv C^{-} < {CH}_{2} = {CH}^{-} > {CH}_{3}^{-}$
0%

${CH}_{2} = {CH}^{-} < CH \equiv C^{-} < {CH}_{3}^{-}$

A solution of (+)-1 chloro-1-phenylethane in toluene racemizes slowly in the presence of small amount of SbCl₅ due to formation of

0%

carbanion
0%
carbene
0%

free radical
0%
carbocation

Among the following compounds, the strongest acid is

0%

HC≡CH
0%
C₆H₆
0%
C₂H₆
0%
CH₃OH

Which of the following is the strongest nucleophile?

0%

Br^-
0%
OH^-
0%
CN^-
0%
CH₃O^-

Which of the following is the most stable carbocation

0%
0%
0%

${CH}_{2} = CH - \overset{\oplus}{C} H_{2}$
0%

${CH}_{2} = \overset{\oplus}{C} H$

In the following compounds

The order of acidity is-

0%

III>IV>I>II
0%
I>IV>III>II
0%
II>I>III>IV
0%
IV>III>I>II

The carbon-carbon bond length in the compounds

follows the order

0%

III<II<I<IV
0%

IV<I<II<III
0%

I<II<III<IV
0%

I<IV<III<II

In the following compounds,

The order of basicity is

0%

IV>I>III>II
0%

III>I>IV>II
0%

II>I>III>IV
0%

I>III>II>IV

Which of the following happens to be the carbanion with highest stability?

0%
1
0%
2
0%
3
0%
4

The IUPAC name of the following compounds

0%

1-Bromocyclohexane carboxylic acid
0%

3-Bromocyclohexanoic acid
0%

3-Bromoheptanoic acid
0%

3-Bromocyclohexanecarboxylic acid

Trans-2-butene on bromination using CS₂ gives which dibromoderivative

0%

(R), (R)-2,3-dibromobutane
0%

(S),(S)-2,3-dibromobutane
0%

Racemic-2,3-dibromobutane
0%

Meso-2,3-dibromobutane

Which of the following carbocations is expected to be most stable?

A group that deactivates the benzene ring towards electrophilic substitution but which directs the incoming group principally to the o- and p-position is.

0%

-NH₂
0%
-Cl
0%
-NO₂
0%
-C₂H₅

0:0:1

Practice Chemistry Quiz Questions and Answers

0:0:1

Practice Chemistry Quiz Questions and Answers

Support mcqexams.com by disabling your adblocker.