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Chemistry Test ...

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  • Question 1
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    Copper reduces  into NO and NO2 depending upon concentration of HNO3 in solution. Assuming  [Cu2+] = 0.1M, and PNO = PNO2 = 10–3 bar. At which concentration of HNO3, thermodynamic tendency for reduction of  into NO and NO2 by copper is same?

  • Question 2
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    A radioactive material (t1/2 = 30 days) gets spilled over the floor of a room. If initial activity is ten times the permissible value, after how many days will it be safe to enter the room

  • Question 3
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  • Question 4
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     A mixture of all possible stereoisomers from the above structure is subjected to fractional distillation, which of the following statements is correct

  • Question 5
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    Which of the following about SF4, SOF4 and COF2 molecules is correct?

  • Question 6
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    B2O3 substitutes nonmetal oxides from several metal salts because

  • Question 7
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    Which of these is most stable?

  • Question 8
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    A is

  • Question 9
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    Formation of “B” through the attack of first two reagents involve respectively

  • Question 10
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    Product “C” is

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