Advertisements
Advertisements
Question
Name a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.
Advertisements
Solution
Manganese dioxide
APPEARS IN
RELATED QUESTIONS
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 following :
Acid present in the stomach of mammals.
Name the following:
Acid used to extract glue from bones.
Name the gas evolved when dilute hydrochloric acid is added to: Potassium bisulphite
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 | _________ | _________ |
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
Complete and balance the following reaction, state whether dilute or cone. acid is used.
\[\ce{NH4OH + HCl ->}\]
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
NH4OH + HCl ⟶
