JEE Main 2025 (Online) 3rd April Evening Shift | Ionic Equilibrium Question 21 | Chemistry

JEE Main 2025 (Online) 3rd April Evening Shift

MCQ (Single Correct Answer)

-1

40 mL of a mixture of $\mathrm{CH}_3 \mathrm{COOH}$ and HCl (aqueous solution) is titrated against 0.1 M NaOH solution conductometrically. Which of the following statement is correct?

JEE Main 2025 (Online) 3rd April Evening Shift Chemistry - Ionic Equilibrium Question 15 English

The concentration of $\mathrm{CH}_3 \mathrm{COOH}$ in the original mixture is 0.005 M

The concentration of HCl in the original mixture is 0.005 M

$\mathrm{CH}_3 \mathrm{COOH}$ is neutralised first followed by neutralisation of HCl

Point ' C ' indicates the complete neutralisation of HCl

JEE Main 2025 (Online) 2nd April Morning Shift

MCQ (Single Correct Answer)

-1

If equal volumes of $A B_2$ and $X Y$ (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of $\mathrm{AY}_2$ at 300 K ? (Given $\mathrm{K}_{\mathrm{sp}}\left(\right.$ at 300 K ) for $\mathrm{AY}_2=5.2 \times 10^{-7}$ )

$2.0 \times 10^{-4} \mathrm{M} \mathrm{AB}_2, 0.8 \times 10^{-3} \mathrm{M} \mathrm{XY}$

$2.0 \times 10^{-2} \mathrm{M} \mathrm{AB}_2, 2.0 \times 10^{-2} \mathrm{M} \mathrm{XY}$

$1.5 \times 10^{-4} \mathrm{M} \mathrm{AB}_2, 1.5 \times 10^{-3} \mathrm{M} \mathrm{XY}$

$3.6 \times 10^{-3} \mathrm{M} \mathrm{AB}_2, 5.0 \times 10^{-4} \mathrm{M} \mathrm{XY}$

JEE Main 2025 (Online) 28th January Evening Shift

MCQ (Single Correct Answer)

-1

Arrange the following in increasing order of solubility product :

$\mathrm{Ca}(\mathrm{OH})_2, \mathrm{AgBr}, \mathrm{PbS}, \mathrm{HgS}$

$\mathrm{PbS}<\mathrm{HgS}<\mathrm{Ca}(\mathrm{OH})_2<\mathrm{AgBr}$

$\mathrm{HgS}<\mathrm{AgBr}<\mathrm{PbS}<\mathrm{Ca}(\mathrm{OH})_2$

$\mathrm{HgS}<\mathrm{PbS}<\mathrm{AgBr}<\mathrm{Ca}(\mathrm{OH})_2$

$\mathrm{Ca}(\mathrm{OH})_2<\mathrm{AgBr}<\mathrm{HgS}<\mathrm{PbS}$

JEE Main 2025 (Online) 28th January Morning Shift

MCQ (Single Correct Answer)

-1

A weak acid HA has degree of dissociation x . Which option gives the correct expression of ( pH - $\mathrm{pK}_{\mathrm{a}}$)?

$\log \left(\frac{1-x}{x}\right)$

$0$

$\log (1+2 \mathrm{x})$

$\log \left(\frac{x}{1-x}\right)$

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