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NEET UG CHEMISTRY MCQ: Equilibrium

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Application +4 | -1
The pHpH of a solution is 5.05.0. To this solution sufficient acid is added to decrease the pHβ€…β€Štoβ€…β€Š2.0pH\;to\;2.0. The increase in hydrogen ion concentration is:
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Correct option: A
1000β€…β€Štimes1000\;times
Option A (1000 times) is correct because a decrease in pH from 5.0 to 2.0 represents a 1000-fold increase in hydrogen ion concentration.

More Questions from Equilibrium

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Given below are two statements: One is labelled as Assertion A and the other labelled as Reason R.
Assertion A: During the boiling of water having temporary hardness, Mg(HCO3)2Mg{(HC{O_3})_2} is converted to MgCO3MgC{O_3}.
Reason R The solubility product of Mg(OH)2Mg{(OH)_2} is greater than that of MgCO3MgC{O_3}.
In the light of the above statements, choose the most appropriate answer from the options given below
At a certain temperature, KPK_{\mathrm{P}} for the dissociation of solid CaCO3\mathrm{CaCO}_3 is 4.5Γ—10βˆ’24.5 \times 10^{-2} atm and for the reaction C(s)+CO2(g)β‡Œ2CO(g),\mathrm{C}(\mathrm{s})+\mathrm{CO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{CO}(\mathrm{g}), the KPK_{\mathrm{P}} value is 2.0Β atm.2.0 \mathrm{~atm}. The pressure of carbon monoxide at this temperature, when solid carbon CaO\mathrm{CaO} and CaCO3\mathrm{CaCO}_3 are mixed together and allowed to attain equilibrium is Phenolphthalein shows … in acid medium. At the state of dynamic equilibrium, for solute ++ solvent ⇋\leftrightharpoons solution. For PCl5⇋PCl3+Cl2\mathrm{PC}{\mathrm{l}_5}\leftrightharpoons\mathrm{PC}{\mathrm{l}_3} + \mathrm{C}{\mathrm{l}_2}, initial concentration of each reactant and product is 1 M. If Keq=0.41{K_{\mathrm{eq}}} = 0.41 then Select the pKa\mathrm{p}{K_a} value of the strongest acid from the following
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