EASY
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How many monochlorinated products can be obtained from all the isomeric alkanes having formula C5H10.

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

MEDIUM
Which of the following pairs of compounds are positional isomers?
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Which of the following biphenyls is optically active?
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Among i Cren33+, ii trans-Cren2Cl2+, iii Cis-Cren2Cl2+, iv CoNH34Cl2+ the optically active complexes are
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The compound which is not isomeric with methoxypropane
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Which of the following alkenes can generate optically active compounds upon hydrogenation?

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Which of the following compounds will exhibit geometrical isomerism?
EASY
The number of isomers which are ether and having the molecular formula C4H10O , is:
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A special name is assigned to compounds having the same molecular formula, but the different structural arrangement of atoms. What is that name? 
HARD

What is isomerism? Write the names and structural formulas of the isomers of pentane.

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

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The maximum number of cyclic isomers (positional and optical) of a compound having molecular formula C3H2Cl2 is
EASY
The maximum number of isomeric ethers with the molecular formula C4H10O is
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The optically inactive compound from the following is:
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(+) 2-Methylbutan-1-ol and (-) 2- Methylbutan-1-ol have different values for which property?
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Number of constitutional isomers of alkane with formula C6H14 is
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The structure of two organic compounds are given below:

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(a) Write the molecular formula of these compounds. 
(b) Which type of isomerism do they exhibit? 
(c) Explain the isomerism. 
(d) Write the position isomer of butanol.

MEDIUM

In the following reaction sequence, identify the relationship between the products Q and S :

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EASY
In the following structure, the double bonds are marked as I,II, III and IV

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