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Potassium dicharomate solution is used t...

Potassium dicharomate solution is used to test drunker driver? Discuss.

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Aqueous solution of potassium dichromate is orange. The driver is asked to breath into the solution. If the solution changes to green, the driver is in drunken state. This is because dichromate oxidises ethanol to acetic acid and itself is reduced to green chromic salt in solution.
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AAKASH SERIES-D - BLOCK ELEMENTS-PRACTICE EXERCISE
  1. Potassium dicharomate solution is used to test drunker driver? Discuss...

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  2. Which of the following element has high density

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  3. Element with pseudooctet configuration in its outermost shell

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  4. The atomic number of element having pseudo inert gas configuration in ...

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  5. Which of the following ion has three unpaired d-electrons

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  6. Number of electrons present in the outer most shell of Cut ion

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  7. Highest oxidation state exhibited by a 3d-metal is

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  8. The highest oxidation state is exhibited by the transition metal with ...

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  9. Hydrated Cu^(2+) ions absorb light of ..... colour and transmit light ...

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  10. The colour of [Ti(H(2)O)(6)]^(3+) is due to

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  11. Complementary colour of green light of wavelength 5000 A^(@) is

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  12. A transitional metal X^(+2) in its hydrated state has six 3d electrons...

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  13. Magnetic moment of which of the following is zero

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  14. The magnetic moment of an ion in its +3 oxidation state is 3.85 BM. Th...

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  15. Common oxidation states of copper in its compounds are

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  16. The ion with highest magnetic moment is

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  17. The highest degree of paramagnetism is shown by

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  18. M^(x+) ion has magnetic moment 2.84 BM. Then 'x' is (Z of M = 23)

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  19. Magnetic moment of Mn^(+2) is 5.8 B.M. Hence the number of unpaired el...

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  20. Reagent used to reduce NO(3)^(-) to NH(3)

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  21. The common metal present in German Silver, Bell metal and Brass is

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