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The following are the statements regardi...

The following are the statements regarding polarisng power of IIA group cations
i) Be always forms covalent compounds due to high polarising power of `Be^(+2)` ions
ii) Be always form covalent compounds due to low polarising power of `Be^(+2)` ions
iii) Polarising power of IIA cations decreases from `Be^(+2) ` ion to `Ba^(+2)` ion
The correcct combination is

A

i and ii are correct

B

ii and iii are correct

C

iii and i are correct

D

i,ii,iii are correct

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-REVISION EXERCISE -ALKALI EARTH METALS
  1. Be((g))rarrBe((g))^(+), DeltaH= x kj/mol. In the reaction Be((g)) rar...

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  2. Calcium carbonate is available in nature in the form of

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  3. The first ionization energies of alkaline earth metals are higher than...

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  4. The following are the statements regarding polarisng power of IIA grou...

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  5. Which of the following is true i) Be is not affected by dry air ...

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  6. The decreasing order of second ionisation potential of K, Ca, Ba is

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  7. Acetylide among the following is

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  8. The ion having highest mobility in aqueous solution is

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  9. Which of the following has the lowest melting point ?

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  10. X and Y are metal nitrates. X on heating liberates O2 only but Y on h...

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  11. Which of the following crystalline substance has the highest degree o...

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  12. Which of the following about Be is not correct?

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  13. Which of the following alkaline earth metal oxides shows a coordinatio...

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  14. Which one of the following statements is correct

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  15. Gypsum is heated to 190^(@)C. The percentage loss in it's weight is

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  16. The following are some stements related to IIA group metals I) The r...

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  17. The correct order of ability to form complexes is

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  18. Among the following which is extensively hydrated

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  19. To a clear solution of compound (X), a solution of BaCl2 is added and...

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  20. The decreasing order of hydration enthalpies of alkaline earth metal i...

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