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Some statements are given below. Among t...

Some statements are given below. Among them, the correct statement are
a) All transition elements are d - block elements
b) All d- block elements are transition elements
c) Helium is a inert gas
d) Aluminium is a respresentative element

A

All are correct

B

Only a, c and d are correct

C

Only b,c and d are correct

D

Only a and c are correct

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -2B
  1. The elements 'X', 'Y' and 'Z' form oxides which are acidic, basic and ...

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  2. The formation of O^(-2) and N^(-3) are endothermic, but metal oxides ...

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  3. Some statements are given below. Among them, the correct statement are...

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  4. Ce-58 is member of

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  5. The radii of F, F^(-), O, O^(2-) are in the order

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  6. O^(2-) and Si^(4+)are isoelectronic ions. If the ionic radius of O^(2-...

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  7. lonic radii (in oversetoA) of As^(3+), Sb^(3+) and Bi^(3+) follow the ...

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  8. The order of decrease in atomic radii for Be, Na and Mg is

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  9. Lanthanide contraction occurs because

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  10. Radius of Cs^(+) ion is less than that of A) Fluoride ion B) Chlo...

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  11. The sizes of A, A^+ and A^- follows the order

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  12. Which of the following has the largest atomic radius ?

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  13. Which of the following grouping represents a collection of iso-electio...

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  14. Which is not related to lanthanide contraction

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  15. A trend common to both groups 1 and 17 elements in the periodic table ...

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  16. The screening effect of d-electrons is

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  17. (A): The first ionisation energy of B is less than that of Be (R) :...

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  18. (A): The second ionisation energy of 'O' is greater than that of secon...

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  19. The species with largest ionisation potential

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  20. Which of the following has highest first ionisation potential?

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