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What will happen when iron nails dipped ...

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

A

Colour of nails changes into black

B

Colour of nails changes into white

C

Colour of nails changes into brown

D

Colour of nails changes into blue

Text Solution

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The correct Answer is:
C
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What happens if you put an iron nail in copper sulphate solution? Describe how do you perform this activity.

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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-OBJECTIVE TYPE QUESTIONS
  1. What will happen if we put Silver Bromide in sunlight?

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

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

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

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  5. BaCl(2)+Na(2)SO(4)rarr BaSO(4)+2NaCl represents ………………… i) Decomposi...

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  6. i) 2H(2)O overset("Electricity")rarr 2H(2)+O(2) ii) 2AgBr overset("h...

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  7. 2PbO((s))+C((s))rarr2Pb((s))+CO(2(g)) Which of the following stateme...

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  8. N(2(g))+O(2(g))rarr 2NO(2(g))-Q is ……………..

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  9. C((s))+O(2(g))rarr CO(2(g))+Q is ………………….

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  10. Choose the alloy

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  11. A balanced equation contains

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  12. Fe(2)O(3(s))+2Al((s))rarr 2Fe((s))+Al(2)O(3(s)) is a/an …………….

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  13. Which of the following is not a double decomposition reaction?

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  14. Which of the following statement is wrong?

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  15. Which of the following is not a exothermic reaction?

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  16. Which one is not formed by a combustion reaction?

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  17. Which one is not a redox reaction?

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  18. Which one cannot be decomposed ?

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  19. Fe+CuSO(4)+cu Zn+AgNO(3)rarr Zn(NO(3))(2)+2Ag Which metals are mor...

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  20. A balanced chemical equation is appreciable because, it gives

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