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Crystals of ferrous sulphate when expose...

Crystals of ferrous sulphate when exposed to air become

A

red

B

brown

C

colourless

D

black

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The correct Answer is:
B
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BHARATI BHAWAN (ENGLISH)-PRACTICALS -EXERCISE
  1. solution of SO(2) gas in water is acidic due to the formation of

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  2. The smell of sulphur dioxide is

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  3. Crystals of ferrous sulphate when exposed to air become

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  4. In the reaction with acidified K(2)Cr(2)O(7) solution , SO(2) acts as

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  5. A colourless gas produces irritation in lungs when inhaled and gives t...

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  6. Mohr's salt is

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  7. The bleaching action of sulphur dioxide is due to

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  8. Sulphur dioxide is not recognized by

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  9. The products formed when sodium sulphite is made to react with dilute ...

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  10. When SO(2) gas is passed through an acidified solution of K(2)Cr(2)O(7...

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  11. Name the substance which is used to prepare blue-black ink

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  12. Sulphur dioxide gas is dried by passing through concentrated H(2)SO(4)...

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  13. Sulphur dioxide gas should not be inhaled directly because

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  14. When a flower bleached by sulphur dioxide is brought in contact with a...

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  15. When SO(2) gas is allowed to react with acidified potassium dichroma...

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  16. Metals that lie above hydrogen in the actively series are know as

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  17. In the reaction Mg + CuSO(4) to MgSO(4) + Cu, Mg acts as

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  18. Iron displaces copper from copper sulphate solution because

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  19. When a piece of iron is placed in a solution of copper sulphate, the b...

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  20. A reddish-brown metal which lies below hydrogen in the activity series...

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