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The compound formed in the Borax Bead T...

The compound formed in the Borax Bead Test of `Cu^(2+)` ions in the oxidising flame is:

A

Cu

B

`Cu(BO_(2))_(2)`

C

`CuBO_(2)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Copper meta borate, `Cu(BO_(2))_(2)` is formed and has blue colour in the oxidising flame
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DINESH PUBLICATION-APPENDICES-Multiple choice
  1. The metal ions which are precipitated when H(2)S gas is passed in the ...

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  2. Which of the following metal sulphides have maximum solubility in wate...

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  3. The compound formed in the Borax Bead Test of Cu^(2+) ions in the oxi...

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  4. A gas 'X' is passed through water to form a solution. The aqeous solut...

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  5. Identify the correct order of solubility of Na(2)S, CuS and ZnS in aqu...

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  6. When H(2)S gas is passed through aqueous solution of CuCl(2), HgCl(2),...

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  7. IN the borax bead test which compound is formed ?

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  8. Mark the correct statement :

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  9. When H(2)S is passed through Hg(2)^(2+), we get :

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  10. How do we differentiate between Fe^(3+) and Cr^(3+) ions in group III ...

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  11. A solution which is 10^(-3) M each in Mn^(2+), Fe^(2+), Zn^(2+) and Hg...

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  12. A red solide is insoluble in water. However it becomes soluble if some...

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  13. Ammonia forms the complex [Cu(NH(3))(4)]^(2+) with copper ion in alka...

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  14. Which of the following statement is correct ?

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  15. Which of the following sulphides is yellow in colour ?

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  16. A soldium salt of unknown anion when treated with MgCl(2) gives white ...

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  17. Nassler's reagent is :

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  18. A metal nitrate reacts with KI solution to give a block precipitate wh...

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  19. Which of the following is not soluble in NaOH?

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  20. The brown ring test for the NO(3)^(-) ions is due to the formation of ...

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