1
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the concentration of $$\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$$ ion in $$\mathrm{mol} ~\mathrm{L}^{-1}$$ of $$0.001 ~\mathrm{M}$$ acetic acid $$(\alpha=0.134)$$ ?

A
$$1.34 \times 10^{-4}$$
B
$$1.54 \times 10^{-4}$$
C
$$1.80 \times 10^{-4}$$
D
$$1.70 \times 10^{-4}$$
2
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which group elements from following are called as chalcogens?

A
group 13
B
group 15
C
group 16
D
group 17
3
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of electrons around sulfur in $$\mathrm{H}_2 \mathrm{SO}_4$$ molecule?

A
4
B
6
C
10
D
12
4
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An ideal gas expands by $$1.5 \mathrm{~L}$$ against a constant external pressure of $$2 \mathrm{~atm}$$ at $$298 \mathrm{~K}$$. Calculate the work done?

A
$$-75 \mathrm{~J}$$
B
$$-303.9 \mathrm{~J}$$
C
$$13.3 \mathrm{~J}$$
D
$$-30 \mathrm{~J}$$
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