1
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

pH of 10$$^{-3}$$ M solution of KOH is

A
7.01
B
2
C
11
D
9
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Hydroxyl ion concentration of 1M HCl is

A
1 $$\times$$ 10$$^{-14}$$ mol dm$$^{-3}$$
B
1 $$\times$$ 10$$^{-1}$$ mol dm$$^{-3}$$
C
1 $$\times$$ 10$$^{-13}$$ mol dm$$^{-3}$$
D
1 $$\times$$ 10$$^{1}$$ mol dm$$^{-3}$$
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Which of the following salts on being dissolved in water gives pH > 7 at 25$$^\circ$$C ?

A
NH$$_4$$CN
B
NH$$_4$$Cl
C
KNO$$_3$$
D
KCN
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