1st PUC Chemistry Syllabus. We covered all the 1st PUC Chemistry Syllabus MCQs in this post for free so that you can practice well for the exam.
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1st PUC Chemistry Syllabus Objective for Students
When ether is exposed to air, which of the following products is formed:
(A) Oxide
(B) Alkanes
(C) Alkenes
(D) Peroxide of diethyl ether
Option d – Peroxide of diethyl ether
Ketones can be prepared by:
(A) Rosenmund reduction
(B) Etard reaction
(C) Cannizzaro reaction
(D) Friedel-Craft reaction
Option d – Friedel-Craft reaction
In Liebermann’s nitroso reaction, sequential changes in the color of phenol occur as:
(A) Brown or red → green → red → deep blue
(B) Red → deep blue → green
(C) Red → green → white
(D) White → red → green
Option a – Brown or red → green → red → deep blue
When propanol is dehydrated, the product obtained is again hydrated and further oxidized to form a compound. The compound is:
(A) Propargyl alcohol
(B) Propanone
(C) Ethylene-1,2-diol
(D) Propane-1,2-diol
Option b – Propanone
When two moles of alcohol react with one mole of ketone, it gives:
(A) Hemiacetal
(B) Acetal
(C) Hemiketal
(D) Ketal
Option d – Ketal
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