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In context with the transition elements,...

In context with the transition elements, which of the following statements is incorrect ?

A

In the gighest oxidation states, the transition metal show basic character and form cationic complexes

B

In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding

C

Once the `d^(5)` configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases

D

In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • In contect with the transition elements, which of the following statements is incorrect ?

    A
    In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes
    B
    In the highest oxidation states, the transition metal show basic character and form cationic complexes.
    C
    In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding.
    D
    Once the `d^(5)` configuration is exceeded, the tendency to involveall the 3d electrons in bonding decreases.

  • In context with the transition element, which of the following statement is incorrect?

    A
    In the highest oxidation states, the transition metal show basic character and form cationic complexes.
    B
    In the highest oxidation states. Of the first five transition element. (Sc to Mn), all the `4s` and `3d` electrons are used for bonding
    C
    Once the `5d` configuration is exceeded, the tendency to involve all the `3d` electrons in bonding decrease.
    D
    In addition to the normal oxidation state, the zero oxidation state is also shown by these elements in complexes.

  • In context to Amniocentesis, which of the following statement is incorrect ?

    A
    It is used for prenatal sex determination
    B
    It can be used for detection of Down syndrome
    C
    It can be used for detection of Cleft palate.
    D
    It is usually done when a woman is between 14-16 weeks pregnant

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