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Which of the following metals is present...

Which of the following metals is present in chlorophyll ?

A

Mg

B

Be

C

Ca

D

none of these.

Text Solution

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The correct Answer is:
A
Mg
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ICSE-THE s - BLOCK ELEMENTS-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESITONS (Choose the correct option in the following questions)
  1. The outer electronic configuration of alkaline earth metals is

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  2. Electrolysis of KCl. MgCl2 . 6H2O gives: potassi...

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  3. Which of the following metals is present in chlorophyll ?

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  4. Which of the following metal carbonates is decomposed on heating?

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  5. Write the equations for the following and balance them Magnesium rea...

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  6. Mixture of MgCl2 and Mgo is called

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  7. The flame test with a salt P gave a brick red flame. What is the catio...

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  8. A substance absorbs CO2 and violently reacts with water. The substance...

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  9. What is plaster of Paris and how is it prepared?

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  10. Portland cement is manufactured by using

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  11. Which one of the following components of cement sets at the slowest ra...

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  12. When Na2CO3 . 10 H2O is kept open in air, it (a)absorbs moisture (b)...

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  13. Describe the setting of plaster of Paris.

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  14. Which of the following elements differs from the rest in several physi...

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  15. What is Sorel's cement and how is it prepared?

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  16. When epsom salt is heated at 150^@C, the compound obtained is

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  17. When CaO is heated in an oxy-hydrogen flame,

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  18. When slaked lime is treated with chlorine, the product obtained is (a...

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  19. Which of the following is not chemically CaCO3 ?

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  20. When a mixture of anhydrous Na2CO3 and NaHCO3 is heated to 100^@C, a ...

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