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Magnesium is present in :...

Magnesium is present in :

A

Haemoglobin

B

Chlorophyll

C

Vitamin `B_(12)`

D

Ascorbic acid

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The correct Answer is:
B
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MODERN PUBLICATION-UNIT TEST - 3-MULTIPLE CHOICE QUESTIONS
  1. Which of the following pairs of substances on reaction will not evolv...

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  2. Which of the following is not an ore of magnesium ?

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  3. Magnesium is present in :

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  4. Lithium shows diagonal relationship with

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  5. Slaked lime reacts with chlorine to give :

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  6. Which of the following alkaline earth metal ion has lowest ionic mobil...

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  7. Which of the following is most basic ?

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  8. Which of the following has largest solubility in water ?

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  9. The stability of the following alkali metal chlorides follows the orde...

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  10. The following compounds have been arranged in order of their increasin...

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  11. Among the alkaline earth metals, the element forming predominantly cov...

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  12. A metal M readily forms water soluble sulphate MSO(4), water insoluble...

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  13. The correct sequence of increasing covalent character is represented b...

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  14. A solid compound 'X' on heating gives CO(2) gas and a residue. The res...

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  15. The correct order of the mobility of alkali metal ions in aqueous solu...

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  16. Ammoniacal solution of MgSO(4) in presence of NH(4)Cl is heated with N...

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  17. The carbonate that will not decompose on heating is

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  18. The alkali metals form salts like hydrides by the direct synthesis at ...

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  19. Correct order of stability of group II A metal carbonates is

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  20. In case of alkali metals, the covalent character decreases in the orde...

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