Chemistry : Organic Chemistry – Some Basic Principles and Techniques

Which one of the following compounds is most acidic?

• Cl - CH₂ - CH₂ - OH

• 

• 

• 

Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)

• cis-[Pt (NH₃)₂Cl₂]

• trans-[Co (en)₂ Cl₂]

• trans- [Pt (NH₃)₂Cl₂]

• cis-[Co(en)₂Cl₂]

Names of some compounds are given. Which one is not correct in IUPAC system?

• $\underset{3-\mathrm{methyl}-2-\mathrm{butanol}}{{\mathrm{CH}}_3 - \mathrm{CH}\left(\mathrm{OH}\right) -\hspace{0.17em}\mathrm{CH}\left({\mathrm{CH}}_3\right) - {\mathrm{CH}}_3}$

• $\underset{4-\mathrm{methyl}-2-\mathrm{pentyne}}{{\mathrm{CH}}_3 - \mathrm{C}\equiv \mathrm{C} - \mathrm{CH}\left({\mathrm{CH}}_3\right)}$

• $\underset{2-\mathrm{ethyl}-3\mathrm{methyl}-\mathrm{but}-1-\mathrm{ene}}{{\mathrm{CH}}_3 - {\mathrm{CH}}_2 - \mathrm{C}\left({\mathrm{CH}}_2\right) - \mathrm{CH}\left({\mathrm{CH}}_3\right) -{\mathrm{CH}}_3}$

• 

The best method for the separation of naphthalene and benzoic acid from their mixture is

• chromatography

• crystallisation

• distillation

• sublimation

R - NH - COH $\underset{\mathrm{Pyridine}}{\overset{{\mathrm{POCl}}_3}{\to }}$ Product

In the given reaction, what will be the product?

• R - N = C = O

• R - $\stackrel{+}{\mathrm{N}}$ $\equiv$ C^-

• R - C $\equiv$ N

• None of these

Which of the following will show geometrical isomerism?

• but-1-ene

• but-2-ene

• 2, 3-dichlorobutane

• ethene

The correct statement(s) about the compound is/are

• The total number of stereoisomes possible for X is 6

• The total number of diastereomers possible for X is 3

• If the stereo chemistry about the double bond is X is trans, the number of enantiomers

• If the stereo chemistry about the double bond in x is, the numberof enantiomers possible to X is 3.

What will be the IUPAC name of given compound?

• 2, 5-diethyl-4-methylhexane

• 3, 4, 6-trimethyloctane

• 2, 5, 6-trimethyloctane

• 3, 5-dimethyl-6-ethylheptane

A mixture of camphor and benzoic acid can be separated by :

• chemical method

• sublimation

• fractional distillation

• extraction with a solvent

Which one of the following contain isopropyl group?

• 2, 2, 3, 3-tetramethylpentane

• 2-methylpentane

• 2, 2, 3-trimethylpentane

• 3, 3-dimethylpentane