What is the product formed when cyclopentanone reacts with methyl lithium?

1. Cyclopentanonyl anion
2. Cyclopentanonyl cation
3. Cyclopentanonyl radical
4. Cyclopentanonyl biradical

 

Compounds that can exhibit tautomerism, are:

1. l and ll
2. l and lll
3. ll and lll
4. l, ll and lll

An organic compound X having molecular formula C₅H₁₀O yields phenyl hydrazone and gives a negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be:

The compound among the following that will not be soluble in
sodium hydrogen carbonate is:

What is the order of the stability of the following tautomeric compounds?

1. III > II > I
2. II > I > III
3. II > III > I
4. I > II > III

Benzaldehyde cannot be prepared by:

1.
2.
3.
4.

Predict the products in the given reaction, 

1.		2.
3.		4.

Acetone is treated with excess ethanol in the presence of hydrochloric acid.
The product obtained will be:

1.
2.
3.
4.

The correct order of decreasing acid strength of
trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C), and formic acid (D) is:

1. B > A > D > C

2. B > D > C > A

3. A > B > C > D

4. A > C > B >D