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The following are some stements related ...

The following are some stements related to IIA group metals
I) The reaction with water increases from Be to Ba
II) The ionic nature of hydrides decreases from Be to Ba
III) The thermal stability of the peroxides increases with increase in cationic size
IV) The solubility of halides increases from Mg to Ba The correct statements are of 

A

I and III

B

II and IV

C

I, II and III

D

I, III and IV

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The following are some statements related to VA group hydrides, I. Reducing proeprty increases from NH_(3) to BiH_(3) II. Tendency to donate lone pair decreases from NH_(3) to BiH_(3) . III. Thermal stability of hydrides decreases from NH_(3) to BiH_(3) . IV. bond angle of hydrides decreases from NH_(3) to BiH_(3) .

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The following are some statments about oxides of alkali metals i) The basis nature and solubility of these oxides increases from Li to Cs ii) The stability of superoxide of IA group elements increases down the group due to increase in lattice energy iii) KO_2 is organe red coloured and paramagnetic

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Following are some statements about alkaline earth metals I) The electronegativity of Ca, Sr, Ba is almost same II) Be and Mg do not give flame colors III) The most abundant alkaline earth metal is Ca in earth's crust The correct combination is

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BeO and Be(OH)_(2) are amphoteric while the oxides and hydroxides of other alkaline earth metals are basic. The solubility of hydroxides increases as we move down the group from Be to Ba but the solubility of sulphates and carbonates decreases in that order the thermal stability of carbonates and sulphates of alkaline earth metals increases from Be to Ba as we move from top to bottom in the group. The solubility in water of sulphates down the Be group is Be gt Mg gt Ca gt Sr gt Ba this is due to

BeO and Be(OH)_(2) are amphoteric while the oxides and hydroxides of other alkaline earth metals are basic. The solubility of hydroxides increases as we move down the group from Be to Ba but the solubility of sulphates and carbonates decreases in that order the thermal stability of carbonates and sulphates of alkaline earth metals increases from Be to Ba as we move from top to bottom in the group. Which of the following metal carbonates decompses on heating ?

AAKASH SERIES-ALKALINE EARTH METALS-OBJECTIVE EXERCISE - 2
  1. Acetylide among the following is

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

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

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  4. The correct order of ability to fom complexes

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  5. To a clear solution of compound (X), a solution of BaCl(2) is added an...

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  6. Ca, Sr and Ba generally form ionic compounds because of ?

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  7. Oxidation state of boron in Magnesium boride

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  8. BeCl(2)overset(‘x’)rarrBeH(2), Here 'X' is

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  9. Which of the following is a constituent of chewing gum ?

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  10. Which physical property is lower for alkaline earth metals as compared...

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  11. Which is soluble in water

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  12. In which of the following reactions Mg is not a reductant

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  13. Two metals (A) and (B) belongs to the same group of periodic table. Me...

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  14. Chemical A is used for water softening to remove temporary hardness. A...

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  15. Mg is an important component of which bio molecule occuring extensivel...

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  16. The carbonate having high decomposition temperature among the followin...

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  17. The most soluble hydroxide among the following is

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  18. X and Y are metal nitrates. X on heating liberafes O(2) only but Y on ...

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  19. Which of the following crystalline substance has the highest degree of...

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  20. Among the following which is extensively hydrated

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