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1
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The $$\left[\mathrm{OH}^{-}\right]$$ in a solution is $$1 \times 10^{-12} \mathrm{~mol} \mathrm{~dm}{ }^{-3}$$. What is the concentration of $$\mathrm{H}^{+}$$ ions?

A
$$0.1 \mathrm{~mol} \mathrm{~dm}^{-3}$$
B
$$1.0 \mathrm{~mol} \mathrm{~dm}^{-3}$$
C
$$2.0 \mathrm{~mol} \mathrm{~dm}^{-3}$$
D
$$0.01 \mathrm{~mol} \mathrm{~dm}^{-3}$$
2
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following salt solution in water shows pH greater than 7?

A
Sodium acetate
B
Sodium sulphate
C
Copper sulphate
D
Ammonium chloride
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The pH of 0.005 M KOH is 9.95. Calculate the [OH$$^-$$] ?

A
6.71 $$\times$$ 10$$^{-4}$$ M
B
1.12 $$\times$$ 10$$^{-4}$$ M
C
4.45 $$\times$$ 10$$^{-5}$$ M
D
8.91 $$\times$$ 10$$^{-5}$$ M
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following salts turns blue litmus red in it's aqueous solution?

A
NH$$_4$$CN
B
NH$$_4$$F
C
CH$$_3$$COONa
D
CH$$_3$$COONH$$_4$$
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