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Some Basic Conc...

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  • Question 1
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    5.5 g of a mixture of FeSO4.7H2O and Fe2(SO4)3 9H2O requires 5.4 mL of 0.1N KMnO4 solution for complete oxidation. Calculate the number of mole of Fe2(SO4)39H2O in the mixture.

  • Question 2
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  • Question 3
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    Haemoglobin present in blood contain 3.72% by mass iron. Calculate the number of iron atoms in 2.0 g of haemoglobin.

  • Question 4
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    The unit J Pa-1 is equivalent to

  • Question 5
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    The density of Al metal is 2.7 gcm-3. An irregularly shaped piece of aluminium weighing 40.0 g is added to a 100 mL graduated cylinder containing 50.0 mL of water. upto what height the water level will rise in the cylinder ?

  • Question 6
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    Choose the proper option after studying following statement (T = True, F = False)
    1. The percent composition of vinyl chloride and its polymer PVC are same.
    2. The percent composition of phosphorous trioxide (P2O3)is half than that of its dimer phosphorous hexoxide (P4O6) for each of the elements present in them.

  • Question 7
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    If the atomic mass of carbon were set at 50 amu, what would be the value of Avogadro’s number ?

  • Question 8
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    For which of the following compounds molecular weigh cannot be determined from atomic weights ?

  • Question 9
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    Which of the following chemical equation is incorrectly balanced ?

  • Question 10
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