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  • Question 1
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    Only One Option Correct Type
    This section contains 11 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct
    An unopened soda has an aqueous concentration of C02 at 25 °C equal to 0.0506 molal. Thus, pressure of C02 gas in the can is (KH = 0.034 mol/kg bar) 

  • Question 2
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    CO(g)is dissolved in H2 Oat 25 °C and 0.010 atm. Henry ’s law constant for this system is 5.80 x104 atm. Thus, mole fraction of CO(g)is

  • Question 3
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     H2 S gas is used in qualitative analysis of inorganic cations. Its solubility in water at STP is 0.195 mol kg-1 . Thus, Henry ’s law constant (in atm molar-1 ) for H2 S is

  • Question 4
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     Variation of Kh (Henry ’s law constant) with temperature T is shown by following graphs I - IV.


    Correct representation is

  • Question 5
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    Concentration of C02 (in mole fraction) in fat when partial pressure of C02 is 55 kPa at 25 °C, is (Henry ’s law constant of C02 = 8.6 x 104 torr)

  • Question 6
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    What is the concentration of 02 in a fresh water stream in equilibrium with air at 25 °C and 1.0 bar? Given, KH (Henry ’s law constant) of 02 = 1.3 x 10-3 mol/kg bar at 25 °C.

  • Question 7
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    Following data has been given for C02 for the concentration in H2 0.

    If solution of C02 in H2 0 is heated from 273 to 333 K, pressure ( p2 ) needed to keep C02 in the solution is

  • Question 8
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    Relation between the volume of gas (2) that dissolves in a fixed volume of solvent(1) and the partial pressure of gas (2) is (nt = total moles, K1 and K2 are Henry ’s constants)

  • Question 9
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    Which is correct about Henry 's law

  • Question 10
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    Henry ’s law constant for N2 at 293 K is 76.48 kbar. N2 exerts a partial pressure of 0.987 bar. If N2 gas is bubbled through water at 293 K, then number of millimoles of N2 that will dissolve in 1 L of water is

  • Question 11
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    A handbook lists the solubility of carbon monoxide in water at 0 °C and 1 atm pressure as 0.0354 mL CO per mL of H2 0. What should be the pressure of CO(g) above the solution to obtain 0.010 M CO solution?

  • Question 12
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    One or More than One Options Correct Type
    This section contains 2  multiple type questions. Each question has 4 choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct     .

    Select the correct statement(s).

     

  • Question 13
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    Select the correct statement(s).

     

  • Question 14
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    Statement Type
    This section is based on Statement I and Statement II. Select the correct anser from the codes given below
    Statement I Solubility of gases in liquids decreases with rise in temperature.
    Statement II CO2 (g) + H2 0 ( / ) ----- »H2 CO3 (aq ); ΔH = - ve

  • Question 15
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    Statement I:  People living at high altitudes have symptoms of a condition known as anoxia.

    Statement II: At high altitudes, the partial pressure of oxygen is less than that at the ground level.

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