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Atomic weight of Eka Al predicted by Men...

Atomic weight of Eka Al predicted by Mendeleef's is' X' and its experimental value is 'Y' then correct order is

A

`X gt Y`

B

`X lt Y`

C

`X=Y`

D

`X=Y/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -2B
  1. Atomic weight of Eka Al predicted by Mendeleef's is' X' and its experi...

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  2. The period in which only single block elements are present by definiti...

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  3. Among the following, the period that contains solid, liquid and gaseou...

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  4. Among a) Na(2)O(2) , b) MgO, c) Al2O3 : d) P2O5 and e) Cl2O7 the most...

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  5. The following are some statements about Mendeleeff's periodic table ...

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  6. The following are some statements about modern periodic table i) It...

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  7. Following are some statements about modern periodic table i) It con...

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  8. Exhibition of various oxidation states by transition elements is due t...

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  9. X' is most inert element and 'Y' is most reactive element in the long ...

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  10. In the presence of six ligand units the degeneracy of d-orbitals is lo...

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  11. Which of the following is true

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  12. Match the following

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  13. Match the following

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  14. Match the following

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  15. Match the following

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  16. The following are some statements about noble gases i) They are betw...

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  17. The following are some statements about transition elements i) IIB g...

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  18. (A): Zn is not a transition element. (R) : Elements with incomplete...

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  19. The atomic number of an element is 35. what is the total number of ele...

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  20. Regarding lanthanide contraction, some statements are given a) It a...

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