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Chemistry Test ...

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  • Question 1
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  • Question 2
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    The correct set of four quantum numbers for the valence electrons of rubidium atom (Z = 37) is:

  • Question 3
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    Which of the following statements is wrong ?

  • Question 4
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    Amongst LiCl, RbCl,  the compounds with the greatest and the least ionic character, respectively are:

  • Question 5
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    56 g of nitrogen and 96 g of oxygen are mixed isothermally and at a total pressure of 10 atm. The partial pressures of oxygen and nitrogen (in atm) are respectively

  • Question 6
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    Temperature of 5 moles of a gas is decreased by 2K at constant pressure. Indicate the correct statement

  • Question 7
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    Zirconium phosphate  dissociates into three zirconium cations of charge + 4 and four phosphate anions of charge – 3. If molar solubility of zirconium phosphate is denoted by S and its solubility product by Ksp then which of the following relationship between S and Ksp is correct?

  • Question 8
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    Thiosulphate reacts differently with iodine and bromine in the reactions given below.

    Which of the following statements justifies the above dual behaviour of thiosulphate?

  • Question 9
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    Which statement is wrong?

  • Question 10
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    A firework gives out crimson coloured light. It contains a salt of

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