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Disodium hydrogen phosphate is used to ...

Disodium hydrogen phosphate is used to test :

A

`Na^(+)`

B

`Ca^(2+)`

C

`Mg^(2+)`

D

`Cu^(2+) `

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-APPENDIX A-Multiple Choice Questions (Level-I)
  1. The aqueous solution of a salt gives white ppt. with lead acetate solu...

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  2. Pb^(2+) belongs to :

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  3. Disodium hydrogen phosphate is used to test :

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  4. Which of the following pair is precipitated with (NH4)2CO3 in the pres...

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  5. Solution of ZnS in dil HCl , when treated with NaOH solution , a white...

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  6. Which of the following sulphide is not soluble in dil. HNO3 ?

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  7. A colourless salts gives grassy green colour in bunsen flame, it may b...

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  8. KCN is used for the separation of :

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  9. Ammonia gas when passed through Nessler's reagent , forms a brown prec...

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  10. Chlorides react with conc. H2SO4 and evolve :

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  11. Equivalent weight of an acid may be expressed as :

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  12. Which of the following statement is not correct ?

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  13. Fe , Al and Cr are grouped together in qualitative analysis because :

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  14. Fe drops of conc. HNO3 are added to group II filtrate before proceedin...

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  15. An inorganic salt when heated evolves a colourless gas which bleaches ...

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  16. Borax when heated on platinum wire forms a glass - like bead which is...

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  17. Aqueous solution of an acetate salt, when heated with FeCl3 solution g...

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  18. Nitric acid is generally not used for preparing original solution in ...

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  19. Acidified K2Cr2O7 solution turns green by:

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  20. Which of the following statement is not correct ?

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