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Reduction of hexose A (Molecular formula $C_{6} H_{12} O_{6}$ ) with sodium borohydride gives compounds B and C. Compound B is optically inactive, whereas compound C is optically active. Which of the following is compound A? (D - psicose is $C_{3}$ - epimer of D - fructose, D - mannose is the $C_{2}$ - epimer of D - glucose)

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which one of the following statements is false?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomer possible for the following compound is

{CH}_{3} - CH = CH - CH (Br) - {CH}_{2} - {CH}_{3}

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

In assigning R-S configuration which among the following groups has highest priority?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

With respect to the conformers of ethane, which of the following statements is true?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following biphenyls is optically active?

EASY

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

In the following structure, the double bonds are marked as

I, II, III

and

IV

Geometrical isomerism is not possible at the site(s):

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

(+) 2-Methylbutan-1-ol and (-) 2- Methylbutan-1-ol have different values for which property?

HARD

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Total number of isomers, considering both structural and stereoisomers, of cyclic ethers with the molecular formula

C_{4} H_{8} O

is ________

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Among

(i) {[C r {(e n)}_{3}]}^{3 +}, (i i) t r a n s - {[C r {(e n)}_{2} C l_{2}]}^{+}, (i i i) C i s - {[C r {(e n)}_{2} C l_{2}]}^{+}, (i v) {[C o {(N H_{3})}_{4} C l_{2}]}^{+}

the optically active complexes are

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following alkenes can generate optically active compounds upon hydrogenation?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following molecules can exhibit optical activity?

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The optically inactive compound from the following is:

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The absolute configuration of

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is:

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Among the following compounds, E/Z isomerism is possible for

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of chiral carbon centres in penicillin is _________.

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following compounds produces an optically inactive compound on hydrogenation?

HARD

Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Among

(a) - (d),

the complexes that can show geometrical isomerism are:

(a)

{[P t {(N H_{3})}_{3} C l]}^{+}

(b)

{[P t (N H_{3}) C l_{5}]}^{-}

(c)

[P t {(N H_{3})}_{2} C l (N O_{2})]

(d)

{[P t {(N H_{3})}_{4} C l B r]}^{2 +}

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The correct corresponding order of names of four aldoses with configuration given below respectively, is

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

The number of stereoisomers possible for the following compound is

C H_{3} - C H = C H - C H (O H) - C H_{3}

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Chemistry>Organic Chemistry>Organic Chemistry- Some Basic Principles and Techniques>Stereoisomerism

Which of the following compounds will exhibit geometrical isomerism?

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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