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

Soda extract is prepared by-

1. Fusing soda and mixture of hydrocarbons, and then extracted with water

2. Dissolving NaHCO₃ and mixture of hydrocarbons in dil. HCl

3. Boiling Na₂CO₃ and mixture of hydrocarbons in dil. HCl

4. Boiling Na₂CO₃ and 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. ${\mathrm{C}}_2{\mathrm{H}}_5\stackrel{..}{\mathrm{O}}$

The stability of 2,3-dimethyl but-2-ene is more than 2-butene. This can be explained in terms of:

1. resonance

2. hyperconjugation

3. electromeric effect

4. inductive effect

(CH₃)₄N⁺ is neither an electrophile, nor a nucleophile because it:

1. does not have electron pair for donation as well as cannot attract electron pair

2. neither has electron pair available for donation nor can accommodate electron since all shells of N are fully occupied.

3. can act as Lewis acid and base

4. none of the above