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प्रश्न
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
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उत्तर
K2Cr2O7 reacts with hydrochloric acid to give a coloured solution.
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संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with concentrated H2SO4 is _________. (Al/Cu/Zn/Fe)
State your observations when Dilute Hydrochloric acid is added to Copper carbonate
Write an equation for the reaction of hydrochloric acid on magnesium foil.
Write an equation for the reaction of aqueous hydrochloric acid on lead nitrate solution.
State which component is the oxidizing agent in aqua regia.
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.
Give a chemical test to distinguish between the following pair of compounds:
Sodium chloride solution and sodium nitrate solution.
Identify the salts P and Q from the observation given below:
When dilute HCl is added to a salt Q, a brisk effervescence is produced and the gas turns lime water milky. When NH4OH soltion is added to the above mixture (after adding dilute HCl), it produces a white precipitate which is soluble in excess NH4OH solution.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Magnesium sulphite
