1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Match the following acids with their $$pKa$$ values :

Acid $$pKa$$
A. Phenol i. 16
B. $$p$$-Nitrophenol ii. 0.78
C. Ethanol iii. 10
D. Picric acid iv. 7.1

A
A - iii, B - iv, C - i, D - ii
B
A - ii, B - i, C - ii, D - iv
C
A - iii, B - i, C - iv, D - ii
D
A - iv, B - ii, C - iii, D - i
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Which of the following can be used to test the acidic nature of ethanol?

A
Blue litmus
B
$$\mathrm{Na}_2 \mathrm{CO}_3$$
C
$$\mathrm{NaHCO}_3$$
D
Na metal
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
Phenol can be distinguished from ethanol by the reagent
A
bromine water
B
sodium metal
C
iron metal
D
chlorine water
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0

    What is the increasing order of acidic strength among the following?

    (i) p-methoxy phenol

    (ii) $p$-methyl phenol

    (iii) $p$-nitro phenol

A
ii $<$ iii $<$ i
B
iii $<$ ii $<$ i
C
i $<$ ii $<$ iii
D
i
KCET Subjects
EXAM MAP