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प्रश्न
Choose the correct answer from the options given below :
Which one is colourless anion?
विकल्प
\[\ce{HCO^-_3}\]
\[\ce{Cr 20^2-_7}\]
\[\ce{Cr O^2-_7}\]
\[\ce{Mn O^-_4}\]
उत्तर
\[\ce{HCO^-_3}\] is colourless anion.
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संबंधित प्रश्न
Match the salts given in Column I with their method of preparation given in Column II
| Column I | Column II | ||
| 1 | Pb(NO3)2 from PbO | A | Simple displacement |
| 2 | MgCl2 from Mg | B | Titration |
| 3 | FeCl3 from Fe | C | Neutralization |
| 4 | NaNO3 from NaOH | D | Precipitation |
| 5 | ZnCO3 from ZnSO4 | E | Combination |
Name a solution that will separate the component of the following mixture: Zn(OH)2 from Pb(OH)2
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