Q18 / 54 · JEE Advanced 2022 (Paper 1) · Chemistry

Match the compounds in LIST-I with the observations in LIST-II, and choose the correct option.

  LIST-I   LIST-II
I Aniline P Sodium fusion extract of the compound on boiling with FeSO4, followed by acidification with conc. H2SO4, gives Prussian blue color.
II o-Cresol Q Sodium fusion extract of the compound on treatment with sodium nitroprusside gives blood red color.
III Cysteine R Addition of the compound to a saturated solution of NaHCO3 results in effervescence.
IV Caprolactam S The compound reacts with bromine water to give a white precipitate.
    T Treating the compound with neutral FeCl3 solution produces violet color.

 

  • A
    I→P,Q;II→S;III→Q,R;IV→P
  • B
    I→P;II→R,S;III→R;IV→Q,S
  • C
    I→Q,S;II→P,T;III→P;IV→S
  • Correct answer
    D
    I→P,S;II→T;III→Q,R;IV→P

Solution

I

Figure

Since it contains both carbon and nitrogen so its sodium fusion extract with boiling FeSO4, followed by acidification with conc. H2SO4 gives Prussian blue colour.

Fe2++6CN-→FeCN64-

3FeCN6-4+4Fe3+→xH2OFe4FeCN63.xH2O                                                           Prussian blue

Figure

I-P,S

II  o-Cresol

Figure Violet coloured complex

III Cysteine

Figure

Since it has both, sulphur and nitrogen, so its sodium fusion extract will give blood red colour with Fe3+ and it has carboxylic group so it will give effervescence with NaHCO3.

IV Caprolactam

Figure

Its sodium fusion extract will give Prussian blue colour on boiling with FeSO4 followed by acidification with conc. H2SO4.

Hence, the correct answer is option: 'D'.

Relevant Questions