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Chemistry Test 161
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Chemistry Test 161
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  • Question 1/10
    4 / -1

    In the above sequence X can be:

    Solutions

     

  • Question 2/10
    4 / -1

    Nitrosoamines are insoluble in water. On heating with conc. H2SO4, they give secondary amines. The reaction is called

    Solutions

     

  • Question 3/10
    4 / -1

    If one strand of DNA has the sequence ATGCTTGA, the sequence in the complimentary strand would be

    Solutions

    On the basis of structure of guanine and complementary bases present in them, we can say that if the sequence of bases in one strand of DNA is I, then the sequence in the second strand should be II

     

  • Question 4/10
    4 / -1

    Which of the following catalyst is used in preparation of high density polythene?

    Solutions

    High density polythene is formed when addition polymerisation of ethene takes place in a hydrocarbon solvent in presence of catalyst such as Ziegler-Natta catalyst.

     

  • Question 5/10
    4 / -1

    Which one of the following can possibly be used as analgesic without causing addiction and mood modification?

    Solutions

    We know that N-acetyl-para-aminophenol (or paracetamol) is an antipyretic which can also be used as an analgesic to relieve pain.

     

  • Question 6/10
    4 / -1

    Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (at. wt. of Fe = 56) present in one molecule of haemoglobin is

    Solutions

     

  • Question 7/10
    4 / -1

    If uncertainty in position and momentum are equal, then uncertainty in velocity is:

    Solutions

     

  • Question 8/10
    4 / -1

    The incorrect statement among the following is

    Solutions

    of Mg is lower than that of Na because in case of Mg+, 3s-electron has to be removed whereas in case of Na+ , an electron is removed from the stable inert gas configuration which is difficult.

     

  • Question 9/10
    4 / -1

    Which molecule/ion out of the following does not contain unpaired electrons?

    Solutions

    The electronic configuration of the given molecules are:

     

  • Question 10/10
    4 / -1

    Solutions

     

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