Chemistry : Organic Chemistry – Some Basic Principles and Techniques

Among the following compound with the lowest pK_a value is

Which one of the following will most readily be dehydrated in acidic solution?

K₂[HgI₄] detects the following ion

• Cl^-

• NO${}_2^{-}$

• NO${}_3^{-}$

• NH${}_4^{+}$

The IUPAC name of (CH₃)₃ C-CH=CH₂ is

• 1, 1, 1-trimethyl-2-propene

• 3, 3, 3-trimethyl-2-propene

• 2, 2-dimethyl-3-butene

• 3, 3-dimethyl-1-butene

An organic compound answers Molisch's test as well as Benedict's test. But it does not answer Scliwanoffs test. Most probably, it is

• sucrose

• protein

• fructose

• maltose

In qualitative analysis, in order to detect second group basic radical, H₂S gas is passed in the presence of dilute HCl to

• increase the dissociation of H₂S

• decrease the dissociation of salt solution

• decrease the dissociation of H₂S

• increase the dissociation of salt solution

Pick out the unsaturated fatty acid from the following

• stearic acid

• Lauric acid

• oleic acid

• Palmitic acid

The coal tar fraction which contains phenol is

• Middle oil

• green oil

• heavy oil

• light oil

The first fraction obtained during the fractionation of petroleum is

• hydrocarbon gases

• kerosene oil

• gasoline

• diesel oil

During the fusion of an organic compound with sodium metal, nitrogen of the compound is converted into :

• NaNO₂

• NaNH₂

• NaCN

• NaNC