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Apple slice changes its colour because i...

Apple slice changes its colour because it contains

A

poly phenol oxidize

B

poly terapthalene

C

polyethene

D

none

Text Solution

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The correct Answer is:
A
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-OBJECTIVE TYPE QUESTIONS
  1. Silver bromide is…........in colour

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  2. Limestone

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  3. Apple slice changes its colour because it contains

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  4. For galvanizing ………….. Metal is used.

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  5. Oils become oxidized, this is …………..

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  6. C(6)H(12)O(6)rarr C(2)H(5)OH+CO(2) is ……………….. Chemical reaction.

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  7. Match the following and select correct option. {:("a) "2Mg+O(2)rarr2...

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  8. Match it and select the correct option. {:("i) Combination","A) "AB+...

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  9. In electrolysis of water experiment, the ratio of volumes of oxygen an...

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  10. xKClO(3)rarr yKCl +zO(2). The respective values of x, y, z are ……………..

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  11. Number of moles of Oxygen needed to produce 4 moles of water on reacti...

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  12. X overset(Delta)rarr CaO+CO(2) Ca(OH)(2)+CO(2)rarr Y+H(2)O. The X an...

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  13. Take about 1 gm of calcium oxide in beaker and add 10 ml of water then...

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  14. What will happen when iron nails dipped in copper sulphate solution?

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  15. Products in the combustion of propane

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  16. When dilute hydrochloric acid is added to iron fillings

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  17. What will happen if we put Silver Bromide in sunlight?

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  18. What will happen if we put Silver Bromide in sunlight?

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  19. What will happen when iron nails dipped in copper sulphate solution?

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  20. Which one does we need to burning a Mg ribbon?

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