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प्रश्न
Name a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.
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उत्तर
Manganese dioxide
संबंधित प्रश्न
Hydrochloric acid contains (i) hydrogen (ii) chlorine. Prove it. Write equations for the reactions.
Name a chloride which is solube in excess of ammonium hydroxide
Give reason for the following:
silver nitrate solution can be used to distinguish HCl from HNO3
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{Pb(NO3)2 + HCl ->}\]
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Mangenese dioxide and copper (II) oxide. (using concentrated HCl)
Name the gas evolved when dilute hydrochloric acid is added to: Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Lead (II) sulphide
Write the steps needed for flame test ?
Complete and balance the following reaction; state whether it is dilute or cone. acid is used.
\[\ce{NH_4OH + HCl ->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
