The number of possible isomers of the aromatic compound with molecular formula C₇H₈O is:        

1. 3             

2. 5

3. 7             

4. 9

Tautomerism will be exhibited by                 

1. (CH₃)₃CNO               2. (CH₃)₂NH

3. R₃CNO₂                    4. RCH₂NO₂

How many isomers are possible for the compound having molecular formula C₃H₅Br₃ ?

1. 5                    2. 4

3. 6                    4. 8

Which of the following pairs are enantiomers?                

1. 

2. 

3. 

4. 

The pair that represents chain isomers is- 

Mark the correct option concerning the below-given structures:

​      

1. Resonating structures

2. Tautomers

3. Geometrical isomers

4. Optical isomers

Fischer projection indicates:

1. Horizontal substituents above the plane.

2. Vertical substituents above the plane.

3. Both horizontal and vertical substituents below the plane.

4. Both horizontal and vertical substituents above the plane.

The general formula for cycloalkanes is:

1. C_nH_2n+2             2. C_nH_2n

3. C_nH_2n-2              4. C_nH_2n+1

The IUPAC name of the compound CH₃CONH(Br) is:

1. 1-Bromoacetamide           

2. N-Bromoethanamide

3. Ethanoyl bromide             

4. None of the above

The correct IUPAC name of (C₂H₅)₄C is:

1. Tetraethyl methane         

2. 2-Ethylpentane

3. 3,3-Diethylpentane         

4. None of the above.