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Which of the following characteristics o...

Which of the following characteristics of the transition metals is associated with their catalytic activity ?

A

High enthalpy of atomization

B

Paramagnetic behaviour

C

Colour hydrated ions

D

Variable oxidation states

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Which of the following characteristics of lanthanides is correct ?

    A
    Reducing property of lanthanides decreases from La to Lu
    B
    Complex forming ability of lanthanides increases from La to Lu
    C
    Basic character of the oxides and hydroxides increases from La to Lu
    D
    Lanthanides form stable compounds only in + 3 oxidation state

  • Which of the following is not a characteristic of humus ?

    A
    It is rich in organic matter such as lignin and cellulose.
    B
    It is colloidal in nature and serves as a reservoir of nutrients.
    C
    It is highly resistant to microbial action and undergoes slow decomposition.
    D
    It is further degraded by the process of humification.

  • Which of the following are the characteristics of a real gas

    A
    The molecules attract each other
    B
    It shows deviations from the ideal gas law
    C
    It obeys the gas law at low temperature and high pressure
    D
    The mass of molecules is negligible

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