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The following are some statements about ...

The following are some statements about Mendeleeff's periodic table
i) It is based on increasing order of atomic numbers
ii) Mendeleeff corrected the atomic weight of some elements like Be, In etc
iii) (Ar,K), (Co,Ni), (Te,I) are three inverted pairs

A

All are correct

B

ii & iii are correct

C

iii is correct

D

i & iii are correct

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -2B
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  2. Among a) Na(2)O(2) , b) MgO, c) Al2O3 : d) P2O5 and e) Cl2O7 the most...

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

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

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

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

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

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

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  9. Which of the following is true

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  10. Match the following

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  11. Match the following

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  12. Match the following

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  13. Match the following

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

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

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

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

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

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  19. I1 of an element X is 899 kJ "mole"^(-1) and that of another element ...

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  20. Consider the following changes a) M((g))^(+2) rarr M((g))^(+3) + e^...

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