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Which of the following will give the sam...

Which of the following will give the same colour in oxidising flame as well as in the reducing flame in borax bead test (when cold) ?

A

Chromium

B

Copper

C

Cobalt

D

Nickel

Text Solution

Verified by Experts

The correct Answer is:
A,C
`Cr`=Green , `Co`=Blue
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RESONANCE ENGLISH-QUALITATIVE ANALYSIS PART 1-A.L.P
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  2. The following can be used to regulate the concentration of OH^(-) ions...

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  3. Select the correct statement(s)

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  4. Which of the following statement(s) is/are not correct?

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  5. Which of the following will give the same colour in oxidising flame as...

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  6. Ni+H(2)SO(4) (hot and concentrated) to X(g) The liberated gas (selec...

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  7. Co^(2+) + KCN (not in excess) to precipitate. Select the correct sta...

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  8. Potassium ferrocyanide is used for testing

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  9. Which of the following statements is/are correct ?

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  10. Which of the following imparts green/apple green colour to the Bunsen ...

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  11. CoCl(2) + KNO(2) + CH(3)COOH to [X] +H(2)O +KCl + CH(3)COOK +NO (Unb...

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  12. How many of the following salts impart characteristic colours to the B...

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  13. How many of the following liberate coloured vapour/gas with concentrat...

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  14. How many of the following pairs of ions can be separated by H(2)S in d...

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  15. Amongst the following, the total number of compounds soluble in concen...

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  16. An alcoholic solution of dimethylglyoxime is added to an aqueous solut...

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  17. Fe^(2+) (aq)+NO(3)^(-) (aq)+H(2)SO(4) (conc.) to Brown ring The brow...

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  18. An aqueous solution contains Hg^(2+),Hg(2)^(2+),Pb^(2+),Ag^(+),Bi(3+) ...

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  19. What happen when 4-nitrobenzene diazonium chloride reagent reacts with...

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  20. (i)A black coloured compound (B) is formed on passing H(2)S through th...

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