Consider the following resonating structures of HCOOH
The order of stability is-
1. | I>II>III>IV | 2. | IV>I>II>III |
3. | I>III>II>IV | 4. | II>I>III>IV |
The correct order of the rate of expulsion of hydrogen as in the above figure is:
1. 1 > 2 > 3
2. 2 > 3 > 1
3. 2 > 1 > 3
4. 3 > 2 > 1
The aromatic compound among the following is :
The most stable carbocation is
1.
2.
3.
4.
The number of chiral centers present in 3,4-dibromo-2-pentanol is/are :
1. 1
2. 2
3. 3
4. 4
Which of the following compounds is isomeric with methyl vinyl ether?
1. Propanal
2. 1-propanol
3. Ethyl methyl ether
4. Dimethylether
The molecule among the following having the highest reactivity toward the SN1 reaction is:
1. C6H5CH(C6H5)Br
2. C6H5CH(CH3)Br
3. C6H5C(CH3)(C6H5)Br
4. C6H5CH2Br
The correct order of abstraction of hydrogen toward homolytic fission is:
1. 2 > 4 > 3 > 5 > 1
2. 4 > 2 > 5 > 3 > 1
3. 4 > 2 > 3 > 5 > 1
4. 4 > 3 > 2 > 5 > 1