Identify the binary mixture(s) that can be se | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The scheme shows that one component of the mixture reacts with both $NaOH(aq)$ and $NaHCO_3(aq)$ to become soluble,while the other remains insolub

Vedclass · Accepted Answer

$(B, D)$

Vedclass · Answer

(A) The scheme shows that one component of the mixture reacts with both $NaOH(aq)$ and $NaHCO_3(aq)$ to become soluble,while the other remains insoluble.$1.$ $C_6H_5COOH$ (benzoic acid) is a strong acid $(pK_a \approx 4.2)$ and reacts with both $NaOH$ and $NaHCO_3$ to form soluble sodium benzoate.$2.$ $C_6H_5CH_2COOH$ (phenylacetic acid) is also a strong acid and reacts with both $NaOH$ and $NaHCO_3$ to form soluble sodium phenylacetate.$3.$ $C_6H_5OH$ (phenol) is a weak acid $(pK_a \approx 10)$ and reacts with $NaOH$ to form soluble sodium phenoxide,but it does not react with $NaHCO_3$.$4.$ $C_6H_5CH_2OH$ (benzyl alcohol) is neutral and does not react with either $NaOH$ or $NaHCO_3$.Analyzing the options:- $(B)$ Mixture of $C_6H_5COOH$ (acid) and $C_6H_5CH_2OH$ (neutral): $C_6H_5COOH$ reacts with both $NaOH$ and $NaHCO_3$ (soluble),while $C_6H_5CH_2OH$ does not (insoluble). This fits the scheme.- $(D)$ Mixture of $C_6H_5CH_2COOH$ (acid) and $C_6H_5CH_2OH$ (neutral): $C_6H_5CH_2COOH$ reacts with both $NaOH$ and $NaHCO_3$ (soluble),while $C_6H_5CH_2OH$ does not (insoluble). This fits the scheme.Therefore,both $(B)$ and $(D)$ follow the given separation scheme.

List-$I$ Element detected	List-$II$ Reagent used/Product formed
$A$. Nitrogen	$I$. $Na_2[Fe(CN)_5NO]$
$B$. Sulphur	$II$. $AgNO_3$
$C$. Phosphorus	$III$. $Fe_4[Fe(CN)_6]_3$
$D$. Halogen	$IV$. $(NH_4)_2MoO_4$

Identify the binary mixture$(s)$ that can be separated into individual compounds by differential extraction,as shown in the given scheme.
$(A)$ $C_6H_5OH$ and $C_6H_5COOH$
$(B)$ $C_6H_5COOH$ and $C_6H_5CH_2OH$
$(C)$ $C_6H_5CH_2OH$ and $C_6H_5OH$
$(D)$ $C_6H_5CH_2OH$ and $C_6H_5CH_2COOH$

Similar Questions

Which one of the following reactions does $NOT$ belong to "Lassaigne's test"?

Match List-$I$ with List-$II$.

List-$I$ Element detected List-$II$ Reagent used/Product formed

$A$. Nitrogen $I$. $Na_2[Fe(CN)_5NO]$

$B$. Sulphur $II$. $AgNO_3$

$C$. Phosphorus $III$. $Fe_4[Fe(CN)_6]_3$

$D$. Halogen $IV$. $(NH_4)_2MoO_4$

Choose the correct answer from the options given below:

Give the chemical reaction for the detection of nitrogen in an organic compound using the Lassaigne's test.

What can be inferred if a blood-red color is obtained in the Lassaigne's test?

Which of the following compounds is not expected to show Lassaigne's test for nitrogen?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Identify the binary mixture$(s)$ that can be separated into individual compounds by differential extraction,as shown in the given scheme.$(A)$ $C_6H_5OH$ and $C_6H_5COOH$$(B)$ $C_6H_5COOH$ and $C_6H_5CH_2OH$$(C)$ $C_6H_5CH_2OH$ and $C_6H_5OH$$(D)$ $C_6H_5CH_2OH$ and $C_6H_5CH_2COOH$