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Methylene blue is an indicator widely us...

Methylene blue is an indicator widely used in acid-base titration, it is formed on mixing:

A

`Na_(2)SO_(3)`

B

`Na_(2)S`

C

`Fe_(2)(SO_(4))_(3)`

D

`FeSO_(4)`

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The correct Answer is:
B, C
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GRB PUBLICATION-SALT ANALYSIS-Multiple Objective Type
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  2. Which of the following statements is/are correct?

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  3. Methylene blue is an indicator widely used in acid-base titration, it ...

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  4. Select the correct statements:

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  6. The addition of dilute HCI acid to a solid nitric in cold yields a tra...

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  7. Which of the following reagent(s) will be most suitable reagent to rem...

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  8. Which of the following reagent(s) make distinction of acetate from oxa...

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  9. Correct statement (s) about the above experiment is/are:

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  10. Which of the following ions interfere with chromyl chloride test?

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  11. Here 'X' may be:

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  12. The correct statements about 'X' gas is:

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  13. Which of the following compound gives white precipitate with silver ni...

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  14. Which of the following salts show chromyl chloride test?

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  15. When mixture of CuCO(3).Cu(OH)(2)(s) and Pb(NO(3))(2)(s) is added in d...

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  16. When solid NaF is treated with conc. H(2)SO(4) in a test tube, followe...

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  17. The correct statement(s) about the flow diagram is/are:

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  20. Which of the following compounds give white ppt. with dil. HCI?

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