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d and f Block T...

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  • Question 1
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    One or More than One Options Correct Type

    Direction (Q. Nos. 1-5) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

    Q. 

    Which one of the following arrangements represent the correct order of the property stated against it?

     

  • Question 2
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    The metals present in German silver alloy are

     

  • Question 3
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     Paramagnetic Curie temperature in Kelvin for iron is equal to :

     

  • Question 4
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    +8 oxidation state is/are shown by

     

  • Question 5
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    Ions having same colour in aqueous solution are

     

  • Question 6
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    Comprehension Type

    Direction : This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

    Passage

    Transition metals and their compounds have paramagnetic properties due to the presence of unpaired electrons in (n - 1)d-orbitals. The paramagnetic behaviour is expressed in terms of magnetic moment which is because of the spin of the unpaired electrons (n). It is given as
    Magnetic moment =   
    Majority of transition metal compounds are coloured both in solid state as well as in aqueous solution. This is also due to the presence of unpaired electrons in (n - 1) d-orbitals, d-orbitals splitting and d-d transition of electrons absorbing suitable visible light.

    Q. 

    Which of the following exhibit colour due to charge transfer phenomenon, but not due to d-d transition?

     

  • Question 7
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    Transition metals and their compounds have paramagnetic properties due to the presence of unpaired electrons in (n - 1)d-orbitals. The paramagnetic behaviour is expressed in terms of magnetic moment which is because of the spin of the unpaired electrons (n). It is given as
    Magnetic moment =   
    Majority of transition metal compounds are coloured both in solid state as well as in aqueous solution. This is also due to the presence of unpaired electrons in (n - 1) d-orbitals, d-orbitals splitting and d-d transition of electrons absorbing suitable visible light.

    Q. 

    Which pair of ions are expected to be diamagnetic?

     

  • Question 8
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    Matching List Type

    Direction : Choices fo r the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

    Q. 

    Match the Column I with Column II and mark the correct option from the given codes.

     

  • Question 9
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    Match the Column I with Column II and mark the correct option from the given codes.

     

  • Question 10
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    Match the Column I with Column II and mark the correct option from the given codes.

     

  • Question 11
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    One Integer Value Correct Type

    Direction : This section contains 4 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

    Q. 

    Number of alloys that contain nickel among the following solder, gun metal, German silver, nichrome, monel metal, constanton, bell metal, duralumin, type metal, invar, alnico.

     

  • Question 12
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    Green vitriol is FeSO4 .xH2 O  and white vitriol is ZnSO4 .yH2 O, Then, the values of x and y are

     

  • Question 13
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    Oxidation state of chromium in CrO5 is +x. Here, value of x is

     

  • Question 14
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    Number of compounds in which metal has zero oxidation state

    WO3 ,Ni(CO)4 , MoO3 , Fe(CO)5 , Cr(CO)6 , [Pt(NH3 )2 CI2 ], Co2 (CO)8 and Mn2 (CO)10

     

  • Question 15
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    Statement Type

    Direction : This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

    Q. 

    Statement l : ,Cu2 O  and Ni-DMG complex are coloured.

    Statement II : It is due to charge transfer transition.

     

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