Question

Which of the following on hydrolysis with dilute alkali followed by an acidification gives benzaldehyde.
 A.Benzotrichloride
 B.Benzal chloride
 C.Benzyl chloride
 D.P-chlorotoluene

Answer 1

Hint: We have to know that, a substance response in which water is utilized to separate a compound; this is accomplished by breaking a covalent security in the compound by embedding a water particle across the security. Something contrary to this is a drying out buildup response.

Complete answer:
We have to know that benzotrichloride, otherwise called trichlorotoluene, is a natural compound with the recipe $C_6{H}_{5}CC{l}_3$ . It is mainly utilized as a middle of the road in the arrangement of other compound items like colors.
The immediate hydrolysis of benzotrichloride with water alone, to create benzoic corrosive and hydrochloric corrosive, can be affected at high temperatures.
Therefore, option (A) is incorrect.
We have to know that benzal chloride is a natural compound with the recipe $C_6{H}_{5}CHC{l}_2$ . This dreary fluid is a lachrymator and is utilized as a structure block in natural blend. Benzal chloride is hydrolyzed to give benzaldehyde.

Therefore, option (B) is correct.
We have to know that benzyl chloride, or alpha-chlorotoluene, is a natural compound with the equation $C_6{H}_{5}C{H}_{2}Cl$ . This dry fluid is a responsive organochlorine compound that is a generally utilized substance building block. Benzyl chloride responds with water in a hydrolysis response to frame benzyl liquor and hydrochloric corrosive.
Therefore, option (C) is incorrect.
The chemical formula of p-chlorotoluene is $C_7{H}_{7}Cl$ . Therefore, option (D) is incorrect.

Therefore, option (B) is correct.

Note:
We have to know that acidification is a characteristic interaction by which the substance of the dirt turns out to be more acidic. This occurs through the deficiency of fundamental or alkalic components like calcium, magnesium, and potassium and additionally the presentation of acidic components like hydrogen and aluminum.