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A and B are:...

`A` and `B` are:

A

B

C

D

Text Solution

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The correct Answer is:
B
`NaBH_(4)` clearly reduces carbony`1` group, protecting the double bond.
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Knowledge Check

  • If the vectors a, b and c are coplanar, then |{:(a, b, c),(a*a, a*b,a*c),(b*a,b*b,b*c):}| is equal to

    A
    1
    B
    0
    C
    `-1`
    D
    None of these 3

  • If (a+b). (a-b) = 8 and |a| = 8 |b|, then the values of |a| and |b| are

    A
    `(16)/(3)sqrt((2)/(7)), (2)/(3)sqrt((2)/(7))`
    B
    `(4)/(3)sqrt((2)/(7)),(2)/(3)sqrt((3)/(7))`
    C
    `(12)/(5)sqrt((2)/(7)),(4)/(3)sqrt((2)/(7))`
    D
    None of these

  • If (a+b). (a-b) = 8 and |a| = 8 |b|, then the values of |a| and |b| are

    A
    `(16)/(3)sqrt((2)/(7)), (2)/(3)sqrt((2)/(7))`
    B
    `(4)/(3)sqrt((2)/(7)),(2)/(3)sqrt((3)/(7))`
    C
    `(12)/(5)sqrt((2)/(7)),(4)/(3)sqrt((2)/(7))`
    D
    None of these
    • A2Z-ALCOHOLS, PHENOLS AND ETHERS-Section D - Chapter End Test
    1. A and B are:

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    2. Dipole moment of CH(3)CH(2)CH(3)(I),CH(3)CH(2)OH(II) and CH(3)CH(2)F(I...

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    3. Acidic nature is more for

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    4. Phenol can be distinguished from aliphatic alcohol with

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    5. The strongest acid among the following is

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    6. Phenol is less acidic than

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    7. B(mix)overset(conc.HI)underset(2) larr CH(3))(2)C-O-CH(3) overset("anh...

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    8. The boiling points to isomertic alcohols follow the order

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    9. Which of the following is a parimary alcohol?

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    10. Complete the following reaction

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    11. The compound that reacts faster with Lucas reagent (conc.HCl +ZnCl(2))...

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    12. The-OH group of Methyl alcohol cannot be replaced by chlorine by the t...

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    13. The calcohol which easily reacts with conc. HCI is

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    14. Because of resonance the oxygen atom of -OH group of phenol

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    15. The compound obtained by heating salicylic acid with phenol in the pre...

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    16. When phenol is allowed to react with Br(2) in (i) CS(2) solution and (...

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    17. When rectified spirit and benzene are distilled togther, the first fra...

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    18. Alcohols react with Grignard reagent to form

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    19. The boiling point of methanol is greater than that of Methyl thiol bec...

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    20. Which of the following will not form a yellow precipitate on heating w...

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