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In Wedge-Dash notation for three-Dimensional representation of an organic molecule, the dashed bond represents.

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Which of the following structures contain sp-hybridised carbon atom(s)?

I. HCCH

II. H2C=C=CH2

III. Question Image

IV. Question Image

EASY
In C1H2=C2=C3H-C4H3 molecule, the hybridization of carbon 1, 2, 3 and 4 respectively, are :
HARD

Newman projections P,Q,R and S are shown below:

Question Image

  Which one of the following options represent identical molecules?

EASY
The hydrocarbon with seven carbon atoms containing a neopentyl and a vinyl group is:
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The number of sp3 hybridised carbons in an acyclic neutral compound with molecular formula C4H5N is