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The compound formed in the borax bead te...

The compound formed in the borax bead test of `Cu^(2+)` ion in oxidising flame is :

A

Cu

B

`CuBO_(2)`

C

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

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Exercise-2
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  2. A fire work gave green light. It probably contained a salt of

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  3. Alkali metal salt "X" gives a pale violet colour in flame test "X" is...

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  4. Borax bead is responded generally by :

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  5. Shape of anion A will be :

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  6. Which of the following anions are producing same gas on treatment with...

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  7. Consider the following reaction, Nitrite + Acetic acid + Thiourea to N...

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  8. A white sodium salt dissolves readily in water to give a solution whic...

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  9. A salt solution of Cd^(2+) in dilute HCl, on treatment with a solution...

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  10. The gas 'G' will show which of the following property ?

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  11. Sodium borate on reaction with conc. H2 SO4 and C2 H5 OH gives a compo...

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  12. How many compounds liberate NH(3) on heating from the following ? (i...

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  13. How many of following metals impart a characteristic colour to the Bun...

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  14. Number of ions which are identified by dil. HCl from the following. ...

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  15. Find the total number of acidic radical which produce volatile product...

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  16. Na(2)S + Na(2)[Fe(CN)(5)NO]to " X" (Violet colour) The total number ...

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  17. Fe^(2+)+NO(3)^(-) +H(2)SO(4) ("conc.") to "X" (Brown ring complex) T...

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  18. How many anions evolve brownish gas when treated with dil. /con. HCl ?...

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  19. Na(2)CO(3),NaCl, NaNO(2),Na(2)SO(3),NaBr,CH(3)CO O Na are separately t...

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  20. B(3)^(3-)+Conc.H(2)SO(4)+CH(3)-CH(2)-OH overset(ignite)rarr(A) What ...

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