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Which constitutes the enamel of our teet...

Which constitutes the enamel of our teeth ?

A

`Ca_3(PO_4)_2`

B

`CaF_2`

C

`MgCl_2`

D

`CaBr_2`

Text Solution

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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. Which will liberate hydrogen on reacting with hydrochloric acid ?

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

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  3. Which constitutes the enamel of our teeth ?

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

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  5. The strongest base in the following is:

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

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

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

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

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

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

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

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  13. The metal 'X' on heating with nitrogen gives compound 'Y' which dissol...

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  14. Ba, Sr, Ca and Mg may be arranged in order of decreasing first ionisat...

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  15. Halides of alkaline earth elements generally form hydrates. This shows...

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  16. The set representing the correct first ionisation energies (IE1) is:

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  17. Identify the least stable among the following

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  18. Which of the following process is used in the extraction of metallurgy...

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  19. The substance not likely to contain CaCO3 is:

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  20. Why is magnesium less electropositive than calcium ?

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