Which among the given molecules can exhibit tautomerisrn?

1. III Only
2. Both I and III
3. Both Iand II
4. Both II and III

The correct order of strengths of the carboxylic acids :-

(a) I>II>III
(b) II>III>I
(c) III>II>I
(d) lI>I>IlI

The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is:

In Duma’s method for estimation of nitrogen, 0.25g of an organic compound gave 40 mL

of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension

at 300 K is 25 mm, the percentage of nitrogen in the compound is

1. 17.36

2. 18.20..

3. 16.76

4. 15.76

The compound that gives the most stable carbonium ion after C- Cl bond ionisation among the following  is-

1.		2.
3.		4.

consider the following compounds

hyperconjugation occurs in 

1. I only

2. II only

3. III only

4. I and III

Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?

The enolic form of ethyl acetoacetate is given below. The number of sigma and pi bonds in the enolic form of ethyl acetoacetate are -

1. 18 sigma bonds and 2 pi-bonds

2. 16 sigma bonds and 1 pi-bond

3. 9 sigma bonds and 2 pi-bonds

4. 9 sigma bonds and 1 pi-bond

Given,

Which of the given compounds can exhibit tautomerism?

1. I and II            

2. I and III

3. II and III           

4. I, II and III

Which of the following is not correct for a nucleophile?

1. Nucleophile is a Lewis acid

2. Ammonia is a nucleophile

3. Nucleophiles attack low electron density sites

4. Nucleophiles are not electron seeking