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Controlling Process

When HCl diss...

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When HCl dissolve in water then it shows which type of deviation and why?

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Q. (i) Gas (A) is more soluble in water than gas (B) at the same temperature. Which one of the two gases will have the higher value of

K_{H}

(Henry's constant) and why?

(ii) In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes?

Q. When the solid A is added to water, it dissolves with the evolution of a lot of heat and making little explosions to form two products B and C. The properties of products B and C are entirely different from those of solid A as well as water. Moreover, products B and B cannot be reconverted into solid A and water. When another solid D is added to water, it dissolves with the absorption of a little heat to form a product E which cools down. The product E shows the properties of both, solid D as well as water. Moreover, product E can be converted into solid D and water.

(a) What type of change occurs when solid A is dissolved in water ? Why ?
(b) What type of change occurs when solid D is dissolved in water ? Why ?
(c) Name a metal which you think could behave like solid A.Also name the products B and C.
(d) Name the solid D if it is the one which is used in making ordinary dry cells.
(e) Name the process by which D can be recovered from E.

Q. If we add 1*10^-8of HCl into pure water in the following reaction:
HCl (aq) + H₂O (l) to give H₃O⁺ (aq) + Cl^- (aq)
and assuming that volume doesn't change when HCl is added, why is H₃O⁺= HCl = 10^-8? Shouldn't it be H₃O⁺+ HCl = 10^-8 because HCl is dissolved with water?

Q. A colourless gas is dissolved in water and the resulting solution turns red litmus blue. Which of the following gases shows this type of reaction?

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