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Which of the following is present in chl...

Which of the following is present in chlorophyll ?

A

Mg

B

Be

C

Ca

D

None of these

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The correct Answer is:
A
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MBD PUBLICATION-S- BLOCK ELEMENTS [ALKALI AND ALKALINE EARTH METALS]-QUESTION TYPE
  1. The decreasing order of IE2 values in K, Ca and Ba is:

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  2. The most electropositive among the following is:

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  3. Which of the following is present in chlorophyll ?

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  4. The compounds with maximum and least ionic characters among the follow...

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  5. The correct order of solubility of the sulphates of alkaline earth met...

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  6. Which imparts brick red colour to the flame ?

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  7. All the following substances react with water. The pair which gives th...

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  8. Which are involved in muscle contraction?

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  9. Which will liberate hydrogen on reacting with hydrochloric acid ?

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  10. To the clear solution of compound (X) a solution of barium chloride (B...

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  11. Which constitutes the enamel of our teeth ?

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  12. Which of the following does not impart colour to the flame ?

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  13. The strongest base in the following is:

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  14. The correct order of increasing thermal stabilities of the compound is...

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  15. A metal is burnt in air and the ash on moistening smells of ammonia. T...

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  16. Which out of the following does not dissolve in dilute HCl ?

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  17. A chloride dissolves appreciably in cold water when placed on the tip ...

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  18. The hydroxide which is max. soluble in water is ?

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  19. The elements forming predominantly covalent bonds in the following is:

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  20. Chemicals compound 'A' is used to remove temporary hardness from water...

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