A racemic mixture is a mixture of:

1. meso and its isomers

2. d- and its l-isomers in equal proportions

3. d- and l-isomers in different proportions

4. meso and d-isomers

Compounds which rotate plane polarised light clockwise direction are known as:

1. Dextrorotatory

2. Laevorotatory

3. Optically inactive compounds

4. Racemic mixture

Which of the following acids shows stereoisomerism?

1. Oxalic acid            

2. Tartaric acid

3. Acetic acid            

4. Formic acid

Glucose and fructose are-

The isomeric cis-2-Butene and trans-2-Butene can be distinguished on the basis of:

1. Their colour.

2. Their reduction products.

3. The products they give on ozonolysis..

4. The products they give on addition to bromine.

The optically active compound among the following is-

1. Isobutyric acid

2. beta-Chloropropionic acid

3. Propionic acid

4. alpha-Chloropropionic acid

Number of optically active forms possible for a compound with the following formula are:

CHOCHOHCHOHCHOHCH₂OH

Which is incorrect about enantiomorphs?

(1) They rotate the plane of polarized light in different directions

(2) They have mostly identical physical properties

(3) They have same configuration

(4) They have different biological properties

The intermediate during the addition of HCl to propene in the presence of peroxide is:

1. $C{H}_3\stackrel{\bullet }{C}HC{H}_{2}Cl$
$$

2. $C{H}_3\stackrel{+}{C}<mspace\; width="1em"></mspace>HC{H}_3$
$$

3. $C{H}_{3}C{H}_2\stackrel{\bullet }{C}{H}_2$
$$

4. $C{H}_{3}C{H}_2\stackrel{+}{C}{H}_2$