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The first ionisation enthalpies of the a...

The first ionisation enthalpies of the alkline earth metals are higher than that of alkali metals but second ionisation ethalpies are smaller, why?

A

There is increase in the nuclear charge of the alkaline earth metals

B

There is decrease in the nuclear charge of the alkaline earth metals

C

There is not change is the nuclear charge

D

All of these

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A
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AAKASH INSTITUTE ENGLISH-THE S-BLOCK ELEMENTS-Assignment (Section-A)
  1. Solvay process is used for the manufacture of

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  2. In the manufacture of sodium hydroxide by product obtained is

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  3. Sodium cannot be obtained by the electrolysis of aqueous solution of N...

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  4. Which of the following bicarbonate does not exist in solid state?

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  5. Magnesium cation has polarising power close to that of :

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  6. In the preparation of sodium carbonate (Na(2)CO(3)) which of the follo...

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  7. Which of the following halides has the highest melting point-

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  8. The first ionisation enthalpies of the alkline earth metals are higher...

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  9. The most electronegative alkaline earth metal is

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  10. Which of the following electronic configuration in the outermost two s...

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  11. Why does magnesium from Mg^(2+) and not Mg^(+)?

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  12. Which of the following is amphoteric oxide ? Mn2O7,CrO3,Cr2O3,CrO,V2...

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  13. Lime water is an aqueous solution of

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  14. Which of the following metals is most commonly used in photochemical c...

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  15. Which substance can be used for purification of sugar?

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  16. Setting of plaster of paris is

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  17. Dead burnt plaster is

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  18. Identify the unknown product (x) in the following reaction Milk of l...

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  19. Formula of gypsum salt is

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  20. Arrange LiOH, NaOH, KOH, RbOH and CSOH in the increasing order of basi...

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