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The chemical formula of marble is…........

The chemical formula of marble is….....

A

CaO

B

Ca

C

`CaCO_(2)`

D

`CaCO_(3)`

Text Solution

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The correct Answer is:
D
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-OBJECTIVE TYPE QUESTIONS
  1. 2g of hydrogen gas contains…...molecules.

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  2. 2g of hydrogen gas occupies…......litres.

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  3. The chemical formula of marble is….....

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  4. A reaction is carried out by….. Is called thermal decomposition reacti...

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  5. All the decomposition reactions are….

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  6. The number of molecules present in 1g of hydrogen

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  7. Corrosion on silver is

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  8. Corrosion copper is…

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  9. Which of the following is an Anti oxidant

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  10. Raising of dough with yeast depends on …………..of sugars to CO(2) and wa...

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  11. Match the following . {:("Oxide","Colour"),("1) MgO","a) White"),("2...

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  12. Assertion (A) : CaO+H(2)Orarr Ca(OH)(2) is a chemical change. Reason...

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  13. Assertion (A) : The number of atoms of each element before and after r...

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  14. Assertion (A) : All the chemical equations must be balanced. Reason ...

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  15. Assertion (A) : 2C(3)H(8)+10O(2)rarr 6CO(2)+8H(2)O is not a balanced e...

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  16. Assertion (A) : All the decomposition reactions are endothermic. Rea...

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  17. Assertion (A) : The element zinc has displaced hydrogen from hydrochlo...

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  18. Assertion (A) : Fe+CuSO(4)rarr FeSO(4)+Cu. Reason : (R) Copper is mo...

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  19. Assertion (A) : Oxiation take place in metals only. Assertion (B) : ...

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  20. Which one is not an oxidation process ?

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