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1
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is Henry's law constant if solubility of a gas in water at $$298 \mathrm{~K}$$ and 1 bar pressure is $$7\times10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$$ ?

A
$$2.0 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$
B
$$7.0 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{bar}^{-1}$$
C
$$3.5 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$
D
$$3.1 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following formulae is used to obtain depression in freezing point?

A
$$\Delta T_f=\frac{T_f^{\circ}}{T_f}$$
B
$$\Delta T_f=T_f^{\circ}-T_f$$
C
$$\Delta \mathrm{T}_{\mathrm{f}}-\mathrm{T}_{\mathrm{f}}=\mathrm{T}_{\mathrm{f}}^{\circ}$$
D
$$\Delta T_f=\frac{T_f}{T_f^{\circ}}$$
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is vapour pressure of a solution when $$2 \mathrm{~mol}$$ of a non-volatile solute are dissolved in $$20 \mathrm{~mol}$$ of water? $$\left(\mathrm{P}_1^0=32 \mathrm{~mm} \mathrm{Hg}\right)$$

A
$$29.1 \mathrm{~mm} \mathrm{~Hg}$$
B
$$12 \mathrm{~mm} \mathrm{~Hg}$$
C
$$6 \mathrm{~mm} \mathrm{~Hg}$$
D
$$9 \mathrm{~mm} \mathrm{~Hg}$$
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In which of the following salts, the solubility increases appreciably with increase in temperature?

A
KBr
B
NaBr
C
NaCl
D
KCl
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