Inorganic Chemistry
Organic Chemistry
Haloalkanes and Haloarenes
MCQ (Single Correct Answer)Subjective
Alcohols, Phenols and Ethers
MCQ (Single Correct Answer)Subjective
Aldehydes, Ketones and Carboxylic Acids
MCQ (Single Correct Answer)Subjective
1
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0

Which one of the following has lowest $$\mathrm{pK}_{\mathrm{a}}$$ value?

A
$$\mathrm{CH}_3-\mathrm{COOH}$$
B
$$\mathrm{O}_2 \mathrm{N}-\mathrm{CH}_2-\mathrm{COOH}$$
C
$$\mathrm{Cl}-\mathrm{CH}_2-\mathrm{COOH}$$
D
$$\mathrm{HCOOH}$$
2
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0

Assertion (A): Acetic acid but not formic acid can be halogenated in presence of red $$\mathrm{P}$$ and $$\mathrm{Cl}_2$$.

Reason (R): Acetic acid is a weaker acid than formic acid.

A
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
B
Both Assertion (A) and Reason (R) and true, but Reason (R) is not the correct explanation of the Assertion (A).
C
Assertion (A) is true, but Reason (R) is false.
D
Assertion (A) is false, but Reason (R) is true.
Questions Asked from Marks 1