1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

$$ \text { Match the following with their } \mathrm{pKa} \text { values } $$

Acid pKa
(I) Phenol (a) 16
(II) p-Nitrophenol (b) 0.78
(III) Ethyl alcohol (c) 10
(IV) Picric acid (d) 7.1
A
I - c, II - d, III - a, IV - b
B
I - a, II - d, III - c, IV - b
C
I - a, II - b, III - c, IV - d
D
I - b, II - a, III - d, IV - c
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0
KCET 2025 Chemistry - Alcohol, Phenols and Ethers Question 2 English

$$ A \text { and } B \text { respectively are } $$

A
KCET 2025 Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 1
B
KCET 2025 Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 2
C
KCET 2025 Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 3
D
KCET 2025 Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 4
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

8.8 g of monohydric alcohol added to ethyl magnesium iodide in ether liberates $2240 \mathrm{~cm}^3$ of ethane at STP. This monohydric alcohol when oxidised using pyridinium-chloro-chromate, forms a carbonyl compound that answers silver mirror test (Tollen's test). The monohydric alcohol is

A
butan-2-ol
B
2,2-dimethyl propan-1-ol
C
pentan-2-ol
D
2, 2-dimethyl ethan-1-ol
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

When a tertiary alcohol ' $A^{\prime}\left(\mathrm{C}_4 \mathrm{H}_{10} \mathrm{O}\right)$ reacts with $20 \% \mathrm{H}_3 \mathrm{PO}_4$ at 358 K , it gives a compound ' $B^{\prime}\left(\mathrm{C}_4 \mathrm{H}_8\right)$ as a major product. The IUPAC name of the compound ' $B$ ' is

A
but-1-ene
B
but-2-ene
C
cyclobutane
D
2-methylpropene
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