The IUPAC name of  the given-below compound is:

1. Butane-2,3-dial

2. Butane-1,3-dione

3. Butane-2,3-dione

4. 1, 2-Dimethylethanedione

The IUPAC name of     is:

1. (N-Bromo)-2-keto-3-methylbutanamide

2. (Bromo) -2-keto-4-methylbutanamide

3. (N-Bromo)-1, 2-diketo-3-methylbutanamine carboxamide

4. (N-Bromo)-1-keto-2-methylpropane

The IUPAC name of  is:

1. 2, 6-Dimethylhepta-2, 5-dienoic acid

2. 3, 7-Dimethylhepta-2, 5-dienoic acid

3. 1-Hydroxy-2, 6-dimethylhepta-2, 5-dienone

4. None of the above

The reagent that is used to remove ${\mathrm{SO}}_4^{2-}$ and Cl^- is -

1. NaOH             

2. Pb(NO₃)₂

3. BaSO₄             

4. KOH

The silver sulphate solution is used to separate:

1. nitrate and bromide

2. nitrate and chlorate

3. bromide and iodide

4. nitrate and nitrite

Find the method used for the preparation of soda extract.

1. Fusing sodium carbonate with the organic compound mixture, followed by extraction with water

2. Dissolving NaHCO₃ and the organic compound mixture in dilute HCl

3. Boiling Na₂CO₃ and the organic compound mixture with dilute HCl

4. Boiling Na₂CO₃ and a mixture of hydrocarbons in distilled water

The most stable carbocation among the following is:

1.		2.
3.		4.

The electromeric effect in organic compounds is a :

1. Temporary effect

2. Permanent effect

3. Electromeric effect is only observed in inorganic molecules

4. None of the above

H₂C = O behaves as:

1. Nucleophile

2. Electrophile

3. Both (1) and (2)

4. None of the above 

Which of the following is strongest nucleophile?

1. Br^-

2. $\stackrel{..}{\mathrm{O}}H$

3. $\stackrel{..}{\mathrm{C}}N$

4. ${\mathrm{C}}_2{\mathrm{H}}_5\stackrel{..}{\mathrm{O}}$