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In the complete rotation of butane from 0° to 360°, the gauche (staggered) conformation appears:

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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In the given conformation, C2 is rotated about C2-C3 bond anticlockwise by an angle of 120°. Then, the conformation obtained is:

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The most stable conformation of ethylene glycol is
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Identify the stereoisomeric pair from the following choices.
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The most stable conformation of 2,3-dibromobutane is:
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Which of the following molecules can exhibit optical activity?
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An organic compound fused with metallic sodium dissolves in water and the solution is divided into two parts, one part is treated with FeSO4, boiled and filtered. In the filtrate, addition of FeCl3 does not produce any precipitate. To the other part, addition of sodium nitro prusside produces violet colour. The organic compound contains.
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Which of the following is not true for maleic acid and fumaric acid.
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The number of optically active stereoisomers possible for butane- 2,3-diol.