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Phenol overset( conc. H2SO4 )to A overs...

Phenol `overset( conc. H_2SO_4 )to A overset( Conc .HNO_3) to B ` Here A and B are respectively.

A

P-Hydroxybenzenesulphonic acid, P-nitrophenol

B

4-Hydroxybenzene-1,3-disulphonic acid, picric acid

C

4-Hydroxybenzene-1,3-disulphonic acid, 2,4-dinitrophenol

D

3-Hydroxybenzenesulphonic acid, picric acid

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The correct Answer is:
B
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AAKASH SERIES-ALCOHOLS, PHENOLS AND ETHERS-PHENOLS (OBJECTIVE EXERCISE - 2A)
  1. Which of the following is the major product formed when phenol is trea...

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

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

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

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

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

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

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

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

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

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  11. From amongst the following alcohols, the one that would react fastest ...

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  12. The electrophile involved in the above reaction is

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  13. The reaction C6 H5 OH underset( "Pyridine") overset( CH3COCl) to C6H6...

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  14. Ortho -Nitrophenol is less soluble in water than p-and m- Nitrophenol ...

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  15. When benzene sulfonic acid and p-nitrophenol are treated with NaHCO(3)...

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  16. Which of the following is the most stable structure of phenol

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  17. Match the following

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  18. The product formed in the following reaction is

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  19. Phenol can be distinguished from ethanol by the reagent

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  20. Which one of the following reactins gives phenol as a major product ?

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