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Which one of the following statements ab...

Which one of the following statements about ozone and ozone layer is true.

A

Ozone layer is beneficial to us because ozone cuts out the ultraviolet radiation of the sun

B

The conversion of ozone to oxygen is an endothermic reaction

C

Ozone has a triatomic linear molecule

D

None of the above

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The correct Answer is:
A
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DINESH PUBLICATION-CHEMISTRY IN EVERY DAY LIFE-Unit test-9
  1. A nucleoside is made up of

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  2. The linkage which holds various amino acdis units in primary structure...

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  3. Which of the followings is an example of zwitter ion

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  4. Which of the following is an example of aldopentose

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  5. The number of bonds possible between a molecules of cytocine and a mol...

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  6. Pyridioxine is the name given to vitamin

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  7. In myoglobin the number of polypetide chains associated with one heme ...

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  8. Which one of the following vitamins cheks night blindness

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  9. Which one of the following is synthesised in our body by sun's rays

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  10. With which of the following disease is vitamin K associated ?

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  11. Which name is associated with the chemical substances produced in the ...

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  12. Ergocalciferol is the name of vitamins

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  13. Insulin belongs to the category of

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  14. Peptide linkage is present in

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  15. Classification of proteins into fibrous and globular forms is on the b...

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  16. Which one of the following statements about ozone and ozone layer is t...

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  17. Which one of the following statements is false ?

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  18. Which of the following is not a consequence of green house effect

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  19. Which of the following is not involved in the formation of photochemic...

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  20. The substances which have the largest concentration in acid rain.

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