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Given below are two statements :
Statement (I) : A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities.
Statement (II) : Blood is naturally occurring buffer solution whose pH is maintained by $ \mathrm{H_2CO_3} / \mathrm{HCO_3^\ominus} $ concentrations.
In the light of the above statements, choose the correct answer from the options given below ;

The element which shows only one oxidation state other than its elemental form is:

$ K_a $ for $ \mathrm{CH_3COOH} $ is $ 1.8 \times 10^{-5} $ and $ K_b $ for $ \mathrm{NH_4OH} $ is $ 1.8 \times 10^{-5} $. The $ \mathrm{pH} $ of ammonium acetate solution will be ______.

The pH of an aqueous solution containing $ 1\,\mathrm{M} $ benzoic acid $ (\mathrm{p}K_a = 4.20) $ and $ 1\,\mathrm{M} $ sodium benzoate is $ 4.5 $. The volume of benzoic acid solution in $ 300 \, \mathrm{mL} $ of this buffer solution is ______ mL.
(given: $ \log 2 = 0.3 $)

What will be the decreasing order of basic strength of the following conjugate bases ?

$\text{ }^{-}\text{OH}, \text{R}\bar{\text{O}}, \text{CH}_3\text{CO}\bar{\text{O}}, \text{C}\bar{\text{l}}$

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JEE Main 2024 4th April Morning Shift

The element which shows only one oxidation state other than its elemental form is:

The pH at which $ \text{Mg(OH)}_2 $ $ [K_{sp} = 1 \times 10^{-11}] $ begins to precipitate from a solution containing $ 0.10 \, \text{M} $ $ \text{Mg}^{2+} $ ions is ________.

For a sparingly soluble salt $ \mathrm{AB_2} $, the equilibrium concentrations of $ \mathrm{A^{2+}} $ ions and $ \mathrm{B^-} $ ions are $ 1.2 \times 10^{-4} \, \mathrm{M} $ and $ 0.24 \times 10^{-3} \, \mathrm{M} $, respectively. The solubility product of $ \mathrm{AB_2} $ is:

Given below are two statements :
Statement (I) : Aqueous solution of ammonium carbonate is basic.
Statement (II) : Acidic/basic nature of salt solution of a salt of weak acid and weak base depends on $ K_a $ and $ K_b $ value of acid and the base forming it.
In the light of the above statements, choose the most appropriate answer from the options given below :

JEE MainsJEE AdvanceBITSATJEE Mains | PYQ

JEE Mains JEE Advance BITSAT
JEE Mains | PYQ