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In the Newman projection for 2,2-dimethy...

In the Newman projection for 2,2-dimethylbutane

X and Y can respectively be

A

H and H

B

H and `C_2H_5`

C

`C_2H_5` and H

D

`CH_3` and `CH_3`

Text Solution

Verified by Experts

The correct Answer is:
B, D
The structure of 2,2-dimethylbutane is `overset1CH_3-undersetunderset(CH_3)|oversetoverset(CH_3)|(.^2C)-overset3CH_2-overset4CH_3`
Taking `C_3` as the front carbon and looking through `C_3-C_2` bond, the Newman projection of 2,2-dimethylbutane is as shown .

Therefore, X=`CH_3` and Y=`CH_3` and hence option (d) is correct.
Now look through `C_1-C_2` bond taking `C_1` as the front carbon, the Newman projection of 2,2-dimethylbutane is as shown.

Therefore, X=H and `Y=C_2H_5` and hence option (b) is correct.
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Knowledge Check

  • In the Newman's projection for 2,2 dimethylbutane X and Y can respectively be:

    A
    H and H
    B
    H and `C_(3)H_(7)`
    C
    `C_(2)H_(5)` and H
    D
    `CH_(3)` and `CH_(3)`

  • Examples X and Y can be respectively

    A
    formation of mango, mixing sugar in hot tea
    B
    ripening of clouds, boiling of an egg
    C
    decaying of plant, cooking of food
    D
    growth of a plant, souring of milk.

  • The newman projection formula of 2-3, dimethylbutane is given as X,Y respectively can be:

    A
    `-CH(CH_(3))_(2) " and " H`
    B
    `-CH_(3) " and " -C_(2)H_(5)`
    C
    `-C_(2)H_(5) " and " -CH_(3)`
    D
    `H" and " -CH(CH_(3))_(2)`

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