Correct IUPAC name of the compound 

1. 4-(Ethyl methanolyonxy)phenylpropanoate

2. Ethyl 4-propanoyloxybenzenecarboxylate

3. 4-(1-Oxo-2-oxabutyl)phenylpropanoate

4. 1-(1-Oxo-2-oxbutyl)-4-(1-oxopropoxy)benzene

Correct IUPAC name of the compound  is

(1) 2-Ethyl-3-methylbut-2-ene-1,4-dioic anhydride

(2) 3-Ethyl_2-methylbut-2-enedioic anhydride

(3) 2-Ethyl-3-Methyl-1,4-diketobut-2-enoic anhydride

(4) 2-Ethyl-3-methylcyclopenatanoxy-1,4-dione

The IUPAC name of the following compound is

1. 2-(Ethoxycarbonyl)benzoylchloride

2. Ethyl 2-(chlorocarbonyl)benzoate

3. Ethyl 2-(chloromethanoyl)benzoate

4. Methyl 2-(Chlorocarbonyl)benzene carboxylate.

A hydrocarbon (R) has six membered ring in which there is no unsaturation. Two alkyl groups are atttached to the ring adjacent to each other. One group has 3 carbon atoms with branching at 1st carbon atom of chain and another has 4 carbon atoms. The larger alkyl group has main chain of three carbon atoms of which second carbon is substituted. Correct IUPAC name of compound (R) is

(1) 1-(1-Methylethyl)-2-(1-methylpropyl)cyclohexane

(2) 1-(2-Methylethyl)-2-(1-methylpropyl)cyclohexane

(3) 1-(1-Methylethyl)-2-(2-methylpropyl)cyclohexane

(4) 1-(1-Methylethyl)-2-butylcyclohexane

Identify the structure of x,

(1)

(2)

(3)

(4)

In which reaction a chiral reactant is giving a chiral product.

(1) (2) (3) (4)

Which of the following statements is not correct?

1. A compound whose molecule has D configuration will always be dextrorotatory

2. A compound whose molecule has D configuration may be dextrorotatory or levorotatory

3. A compound whose molecule has R configuration may be dextrorotatory or levorotatory

4. A compound whose molecule has L configuration may be dextrorotatory or levorotatory

Choose the correct statement among the following: 

The correct stability order of following species is :

(1) x > Y > w > z

(2) y > x > w > z

(3) x > w > z > y

(4) z > x > y > w

Which of the following does not represent the resonating structure of

1. 
2. 
3. 
4.