1
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

At 25$$^\circ$$C, the ionic product of water is 10$$^{-14}$$. The free energy change for the self-ionization of water in kCal mol$$^{-1}$$ is close to

A
20.5
B
14.0
C
19.1
D
25.3
2
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Equal volumes of aqueous solution of $$0.1(\mathrm{M}) \mathrm{HCl}$$ and $$0.2(\mathrm{M}) \mathrm{H}_2 \mathrm{SO}_4$$ are mixed. The concentration of $$\mathrm{H}^{+}$$ ions in the resulting solution is

A
0.15 (M)
B
0.30 (M)
C
0.10 (M)
D
0.25 (M)
3
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Correct solubility order of $$\mathrm{AgF}, \mathrm{AgCl}, \mathrm{AgBr}, \mathrm{AgI}$$ in water is

A
$$ \mathrm{AgF}<\mathrm{AgCl}>\mathrm{AgBr}>\mathrm{AgI} $$
B
$$ \mathrm{AgI}<\mathrm{AgBr}<\mathrm{AgCl}<\mathrm{AgF} $$
C
$$ \mathrm{AgF}<\mathrm{AgI}<\mathrm{AgBr}<\mathrm{AgCl} $$
D
$$ \mathrm{AgCl}>\mathrm{AgBr}>\mathrm{AgF}>\mathrm{AgI} $$
4
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

What will be the change in acidity if

(i) $$\mathrm{CuSO}_4$$ is added in saturated $$(\mathrm{NH}_4)_2 \mathrm{SO}_4$$ solution

(ii) $$\mathrm{SbF}_5$$ is added in anhydrous $$\mathrm{HF}$$

A
increase, increase
B
decrease, decrease
C
increase, decrease
D
decrease, increase
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