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Ionic Equilibrium question

2023 · 15 Apr · Shift 1 · Q9
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  5. /2023 · 15 Apr · Shift 1 · Q9

Ionic Equilibrium question

2023 · 15 Apr · Shift 1 · Q9

JEE MainChemistryIonic EquilibriumMCQ+4 / −1
Which of the following statement(s) is/are correct? (A) The pH\mathrm{pH}pH of 1×10−8 M HCl1 \times 10^{-8}~ \mathrm{M} ~\mathrm{HCl}1×10−8 M HCl solution is 8 . (B) The conjugate base of H2PO4−\mathrm{H}_{2} \mathrm{PO}_{4}^{-}H2​PO4−​ is HPO42−\mathrm{HPO}_{4}^{2-}HPO42−​. (C) Kw\mathrm{K}_{\mathrm{w}}Kw​ increases with increase in temperature. (D) When a solution of a weak monoprotic acid is titrated against a strong base at half neutralisation point, pH=12pKa\mathrm{pH}=\frac{1}{2} \mathrm{pK}_{\mathrm{a}}pH=21​pKa​ Choose the correct answer from the options given below:
  1. A
    (A),(B),(C)(\mathrm{A}),(\mathrm{B}),(\mathrm{C})(A),(B),(C)
  2. B
    (B), (C)
  3. C
    (B), (C), (D)
  4. D
    (A), (D)
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