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Chemistry Test 68
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Chemistry Test 68
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  • Question 1/9
    4 / -1

    Potassium dichromate when heated with concentrated sulphuric acid and a soluble chloride, gives brown–red vapours of:

  • Question 2/9
    4 / -1

    Rate of dehydration of alcohols follows the order:

  • Question 3/9
    4 / -1

    Which one of the following is an amphoteric oxide?

  • Question 4/9
    4 / -1

    How many EDTA (ethylenediamine tetraacetic acid) molecules are required to make an octahedral complex with a Ca2+ ion?

  • Question 5/9
    4 / -1

    Which one of the following molecules is polar?

  • Question 6/9
    4 / -1

    Type of isomerism which exists between

    [Pd(C6H5)2 (SCN)2] and [Pd(C6H5)2 (NCS)2] is:

  • Question 7/9
    4 / -1

    In which of the following ionization processes the bond energy has increased and also the magnetic behavior has changed from paramagnetic to diamagnetic?

  • Question 8/9
    4 / -1

    12 g of nonvolatile solute dissolved in 108g of water produces the relative lowering of vapor pressure of 0.1. The molecular mass of the solute is:

  • Question 9/9
    4 / -1

    Which of the following enzyme converts starch into maltose?

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