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Fe(OH)3 and Cr(OH)3 ppts. are separated ...

`Fe(OH)_3 and Cr(OH)_3` ppts. are separated by :

A

Aqueous `NH_3`

B

`H_2SO_4`

C

`NaOH//H_2O_2`

D

`HCl`

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The correct Answer is:
C
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MODERN PUBLICATION-APPENDIX A-Multiple Choice Questions (Level-I)
  1. Mohr's salt is :

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  2. Which type of variation is inherited ?

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  3. Fe(OH)3 and Cr(OH)3 ppts. are separated by :

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  4. H2S would separate the following at pH lt 7

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  5. Ag2S is soluble in NaCN due to the formation of :

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  6. A solution contains Cu(CH3COO)2. Cd(CH3COO)2 and Zn(CH3COO)2. On pass...

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  7. In Lassagine's test, when both N and S are present, blood red colour i...

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  8. Lassaigne's solution gives violet colouration with sodium nitroprussid...

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  9. Belstein's test is used for the detection of :

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  10. The prussian blue colour in the test of nitrogen by Lassagine's soluti...

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  11. Leibig method is used for the estimation of

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  12. For the detection of sulphur by Lassaigne's test, the addition of sodi...

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  13. In Lassaigne's test for N, the blue colour is due to the formation of ...

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  14. In the detection of halogen, nitric acid is added to the Lassaigne's e...

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  15. Sodalime test for detection of nitrogen cannot be used for :

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  16. In case N and S are also present along with halogen in the organic com...

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  17. Which of the following pairs has heat of neutralisation equal to -57.1...

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  18. Which of the following neutralisation reaction is most exothermic ?

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  19. The heat of neutralisation of strong acid and strong base is 57.0 kJ. ...

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  20. During the test of N in an organic compound by Lassaigne's extract, pr...

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