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Chemistry Test ...

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  • Question 1
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    Which of the following expressions is not true?

  • Question 2
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    M2SO4 (M+is a monovalent metal ion) has a K. of 3.2×10−5 at 298 K. The maximum concentration of SO−24 ion that could be attained in a saturated solution of this solid at 298 K is

  • Question 3
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    The electrolyte most effective for bringing about coagulation of Fe(OH)3 sol is

  • Question 4
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    Which of the following is not the extensive property?

  • Question 5
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    Directions: Based on following paragraph.
    In certain polar solvents, \(\mathrm{PCl}_{\mathrm{s}}\) undergoes an ionization reaction in which \(\mathrm{Cl}^{-}\) ion leaves one \(\mathrm{PCl}_{5}\) molecule and attaches itself to another. \(2 \mathrm{PCl}_{5} \mathrm{PCl}_{4}^{+}+\mathrm{PCl}_{6}^{-}\)
    Number of lone pairs around phosphorus inPCl \(_{5}, \mathrm{PCl}_{4}^{+}\) and \(\mathrm{PCl}_{6}^{-}\) are respectively

  • Question 6
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    The IUPAC name of acrylonitrile is

  • Question 7
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    A compound formed by elements A and B has a cubic structure in which A atoms are at the comers of the cube and B atoms are at the face centres. The formula for the compound is

  • Question 8
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    A wedding ring presented to a bride contains 788 mg of gold and rest diamond. If the ring weighs 1 g the bride receives (At wt: Au = 197, C = 12)

  • Question 9
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    Which of the following is not an actinide?

  • Question 10
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    The vapour pressure of pure liquid solvent A is atm. When a nonvolatile substance B is added to the solvent, its vapour pressure drops to 0.60 atm. What is the mole fraction of component B in the solution?

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