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The chemical reaction between two substa...

The chemical reaction between two substances is characterised by a change in colour from orange to green These two substances are most likely to be:

A

potassium dichromate solution and sulphur dioxide

B

potassium permanganate solution and sulphur dioxide

C

potassium permanganate solution and lemon dioxide

D

potassium dichromate solution and carbon dioxide.

Text Solution

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The correct Answer is:
A
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LAKHMIR SINGH & MANJIT KAUR-CHEMICAL REACTIONS AND EQUATIONS -Exercise
  1. You are given the solution of lead nitrate. In order to obtain a yello...

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  2. An acid which can decolourise purple coloured potassium permanganate s...

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  3. The chemical reaction between two substances is characterised by a cha...

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  4. The chemical reaction between quicklime and water is characterised by ...

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  5. One of the following is an endothermic reaction. This is :

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  6. Which of the following is not an endothermic reaction ?

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  7. One of the following is an exothermic reaction. This is

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  8. The chemical equations are balanced to satisfy one of the following la...

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  9. When the solution of substance X is added to a solution of potassium i...

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  10. When water is added gradually to a white solid X, a hissing sound is h...

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  11. When metal X is treated with a dilute acid Y, then a gas Z is evolved ...

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  12. A silver-white metal X taken in the form of ribbon, when ignited, burn...

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  13. A metal X forms a salt XSO(4). The sale XSO(4) forms a clear solution ...

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  14. The metal M reacts vigorously with water to from a solution S and a ga...

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  15. When a mixture of gases X and Y is compressed to 300 atm pressure and ...

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  16. The white solid compound A decomposes quite rapidly on heating in the ...

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  17. Gas A, which is the major cause of global warming, combines with hydro...

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  18. What type of reaction is represented by the digestion of food in our b...

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  19. Name the various types of chemical reactions.

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  20. Why does the colour of copper sulphate solution change when an iron na...

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