Which of the following compounds is not chiral?

• 1-chloro-2-methyl pentane

• 2-chloropentane

• 1-chloropentane

• 3-chloro-2-methyl pentane

The number of metamers possible for C₄H₁₀O is

• 1

• 2

• 3

• 4

Which of the following species is an electrophile?

• H₂O

• NH₃

• C₂H₅OH

• SO₃

64.

Which of the following is a nucleophile?

• BH₃

• NH₃

• AlCl₃

• All of these

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