Chemistry : Organic Chemistry – Some Basic Principles and Techniques

The IUPAC name of the following compound is

• 3-ethyl-2-methylbutanal

• 2, 3-dimethylpentanal

• 2-ethyl-3-methylbutanal

• 2-ethyl-3-methylbutan-3-al

Which of the following is not a isomer of pentane?

• n-pentane

• 2, 2-dimethyl 1-propane

• 2, 3-dimethyl 1-butane

• 2-methyl 1-butane

Which of the following compound is not aromatic?

• 1,3-cyclobutene

• Pyridine

• Furane

• Thiophene

Which of the following group is sharp -ortho and -para directive?

• -C₆H₅

• -OH

• CH₃

• -Cl

The minimum numbers of carbon atoms in ketones which will show chain isomerism will be

• 7

• 4

• 6

• 5

The number of isomers in C₄H₁₀O are

• 7

• 8

• 6

• 5

Which of the following organic compounds could not be dried by anhydrous CaCl₂?

• Ethanol

• Benzene

• Chloroform

• Ethyl acetate

[Cr(NH₃)₆][Cr(SCN)₆] and [Cr(NH₃)₂(SCN)₄] [Cr(NH₃)₄(SCN)₂] are the examples of what type of isomerism?

• Ionisation isomerism

• Linkage isomerism

• Coordination isomerism

• Solvate isomerism

Which among the following functional groups has been given the highest priority while assigning R-S configuration?

• -C₆H₅

• -CN

• -C₂H₅

• -CH₃

If 'n' represents total number of asymmetric carbon atoms in a compound then the possible number of optical isomers of the compound is 

• 2n

• 2ⁿ

• n²

• 2n+2