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The d- and f- B...

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  • Question 1
    1 / -0

    A student made the following observations in the laboratory.


    I. Clean copper metal did not react with $$1$$ molar $$Pb(NO_{3})_{2}$$ solution
    II. Clean lead metal dissolved in a $$1$$ molar $$AgNO_{3}$$ solution and crystals of $$Ag$$ metal appeared
    III. Clean silver metal did not react with $$1$$ metal $$Cu(NO_{3})_{2}$$ solution

    The order of decrease in reducing character of three metals is:

  • Question 2
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    The compound pictured below undergoes decomposition when heated.
    Which of the following CORRECTLY represents a possible set of products of this decomposition?

  • Question 3
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    The magnetic moment of $$\left[ Co{ \left( N{ H }_{ 3 } \right)  }_{ 6 } \right] { Cl }_{ 3 }$$ is:

  • Question 4
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    Actinides exhibit a larger number of oxidation state than that of corresponding lanthanides. The reason behind this aspect is :

  • Question 5
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    In the oxidation of oxalic acid by potassium permanganate, in the presence of dil. $$H_2SO_4$$ one of the products _______ acts as an autocatalyst.

  • Question 6
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    The magnetic moment of a transition metal ion is $$\sqrt { 15 } BM$$. Therefore, the number of unpaired electrons present in it is:

  • Question 7
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    Which one of the following complex ions has the highest magnetic moment?

  • Question 8
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    In the dichromate dianion, the nature of bonds are:

  • Question 9
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    Which of the following complex compounds will exhibit the highest paramagnetic behaviour?


    $$[At. no. Ti = 22, Cr = 24, Co = 27, Zn = 30]$$

  • Question 10
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    The magnetic moment of a divalent ion in aqueous solution with atomic number 25 is:

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