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Increasing pK(a) values of o-, and p- cr...

Increasing `pK_(a)` values of o-, and p- cresols is

A

o lt p lt m

B

m lt p = o

C

m lt o lt p

D

p lt o lt m

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The correct Answer is:
B
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Knowledge Check

  • The pK_(a) values of four carboxlic acids are 4.76, 4.19, 0.23 and 3.41 respectively. The pK_(a) value of strogest carboxlic acids among them is

    A
    4.19
    B
    3.41
    C
    0.23
    D
    4.76

  • The pK_(a) values of four carboxylic acids are given below. Identify the weakest carboxylic acid.

    A
    4.89
    B
    1.28
    C
    4.76
    D
    2.56

  • Which of the following is relatively weak acid ? ( pK_(a) values are given in brackets)

    A
    HA (6,8)
    B
    HB (4,2)
    C
    HC (5,4)
    D
    HD (9,62)
    • AAKASH SERIES-ALCOHOLS, PHENOLS AND ETHERS-PHENOLS (OBJECTIVE EXERCISE - 2A)
    1. Increasing pK(a) values of o-, and p- cresols is

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    2. Which of the following compounds would not evolve CO(2) when treated w...

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    3. Phenol is

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    4. Rate of electrophilic substitution reaction in phenol is

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    5. m-Dihydroxybenzene is called as

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    6. 2 - Methyl phenol is

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    7. Identify the product Z in the following sequence of reactions "pheno...

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    8. Phenol on heating with aq. KOH and chloroform undergoes

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    9. Electrophilic substitution in phenol takes place at

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    10. Alcohols can be distinguished from ethers by

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    11. Which of the following is the major product formed when phenol is trea...

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    12. Which of the following has the least value of pKa ?

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    13. Y overset(Na)(larr) X overset(conc.H2SO4 . 413 K)(to) (C2H5)2O ...

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    14. Br(2) dissolved in CS(2) reacts with phenol at 273K to give …............

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    15. The descending order of kb values of the following compounds is

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    16. Phenol overset( conc. H2SO4 )to A overset( Conc .HNO3) to B Here A...

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    17. Phenol overset( NaOH) to A underset((2)H^(+)) overset((i)CO2) to B ove...

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    18. One mole of Phenols is warmed with sodium metal. If we assume 100% yie...

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    19. Benzene overset( "oleum") to A overset( NaoH) to B underset( -NaCl)ove...

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    20. If we use carbon tetrachloride in Reimer Tiemann reaction in place of ...

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