Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 20199 AprilMorning Shift
Exam
JEE Main
Year
2019
Date
9 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Alcohols Phenols and Ethers

JEE Main 2019 · 9 April · Morning Shift · Chemistry · Alcohols Phenols and Ethers

The organic compound that gives following qualitative analysis is:...

The organic compound that gives following qualitative analysis is:
Test Inference
(a)( a ) Dil . HCl</td><td>Insoluble</td></tr><tr><td></td> <td>Insoluble</td> </tr> <tr> <td>( b )</td><td></td> <td>NaOHsolution</td><td>Soluble</td></tr><tr><td></td> <td>Soluble</td> </tr> <tr> <td>( c )</td><td></td> <td>B{r}_{2} / water$ Decolourization
The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )

Options

  1. AA reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced
  2. BA reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced
  3. CA reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced
  4. DA reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced

Correct answer

C. A reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced

Step-by-step solution

(i) Aromatic compounds having +M+ M group can decolourise bromine water.
(ii) Since the compound is insoluble in HClHCl, it shows that the compound is acidic.
(iii) As the compound is soluble in NaOH, this again shows that the compound is acidic.
The above three conclusions indicate that the compound is aromatic having +M+ M group and acidic.
Hence, the answer is a phenol as it is aromatic and slightly acidic.
The organic compound that gives following qualitative analysis is: Test Inference ( a ) Dil . HCl Insoluble ( b )
Practice Alcohols Phenols and Ethers on Quantrex Academy →

More from Alcohols Phenols and Ethers

Considering LiBH_4 reduces an ester group to the corresponding alcohol and does not… JEE Advanced 2026The major product of which of the following reaction is not obtained by rearrangement… JEE Main 2026Consider the following reaction. Statement I : In the above reaction, product formed will… JEE Main 2026Consider the following sequence of reactions The major product P is: JEE Main 2026Arrange the following compounds according to increasing order of boiling points.… JEE Main 20264.7 g of phenol is heated with Zn to give product X. If this reaction goes to 60\%… JEE Main 2026Consider compounds A, B and C with following structural formulae A = CH _3 - CH _2 - CH… JEE Main 2026One mole of phenol is treated with dilute HNO _3 at 298 K to give a mixture of products.… JEE Main 2026 Full Alcohols Phenols and Ethers list All JEE Main PYQs