1
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : Acetal / Ketal is stable in basic medium.

Reason R : The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

In the light of the above statements, choose the correct answer from the options given below :

A
A is false but R is true.
B
Both A and R are true but R is NOT the correct explanation of A
C
Both A and R are true and R is the correct explanation of A
D
A is true but R is false.
2
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

'A' and 'B' formed in the following set of reactions are :

JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 29 English

A
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 29 English Option 1
B
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 29 English Option 2
C
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 29 English Option 3
D
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 29 English Option 4
3
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

When ethanol is heated with conc. $$\mathrm{H}_{2} \mathrm{SO}_{4}$$, a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is

A
formaldehyde
B
formic acid
C
glycol
D
ethanoic acid
4
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHCO3 solution. Compound 'X' also gives violet colour with neutral FeCl3 solution. The compound 'X' is :

A
JEE Main 2022 (Online) 29th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 45 English Option 1
B
JEE Main 2022 (Online) 29th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 45 English Option 2
C
JEE Main 2022 (Online) 29th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 45 English Option 3
D
JEE Main 2022 (Online) 29th July Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 45 English Option 4
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