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प्रश्न
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
उत्तर
K2Cr2O7 reacts with hydrochloric acid to give a coloured solution.
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संबंधित प्रश्न
Potassium sulfite on reacting with hydrochloric acid releases _______ gas. (Cl2, SO2, H2S)
Write balanced chemical equations to show The behavior of H2SO4 as an acid when it reacts with Magnesium
Write an equation for the reaction of hydrochloric acid on the silver nitrate solution.
Write an equation for the reaction of hydrochloric acid on zinc carbonate.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Convert two soluble metallic nitrates to insoluble metallic chlorides using \[\ce{dil. HCl}\].
Name the following:
Salt obtained by heating sodium chloride with concentrated sulphuric acid below 200 degree celcius.
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:
| S. No. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | _________ | _________ |
| 2. | Magnesium ribbon | _________ | _________ |
| 3. | Manganese (IV) oxide with heating | _________ | _________ |
| 4. | Sodium sulphide | _________ | _________ |
Complete the table by writing the gas evolved in each case and its odour.
How will you identify?
An amphoteric hydroxide
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
