Advertisements
Advertisements
Question
Match column A with column B.
| Column A | Column B |
| (a) Blue salt changes to white and then black | (i) Ammonium dichromate |
| (b) Orange coloured compound changes to green. | (ii) Iodine |
| (c) Red compound changes to brown and then yellow. | (iii) Zinc Nitrate |
| (d) White to yellow when hot and white when cold. | (iv) Copper sulphate |
| (e) Violet solid changes to violet vapours. | (v) Red Lead |
Advertisements
Solution
| Column A | Column B |
| (a) Blue salt changes to white and then black | (iv) Copper sulphate |
| (b) Orange coloured compound changes to green. | (i) Ammonium dichromate |
| (c) Red compound changes to brown and then yellow. | (v) Red Lead |
| (d) White to yellow when hot and white when cold. | (iii) Zinc Nitrate |
| (e) Violet solid changes to violet vapours. | (ii) Iodine |
APPEARS IN
RELATED QUESTIONS
Balance the following equation:
\[\ce{Mg(OH)2 + HCl -> MgCl2 + H2O}\]
Zinc oxide reacts with carbon, on heating, to form zinc metal and carbon monoxide. Write a balanced chemical equation for this reaction. Name
- oxidising agent, and
- reducing agent,
in this reaction.
Write your observation for the following chemical reaction and name the product formed :
When dilute acetic acid is poured on baking soda.
Choose the correct alternative and rewrite the following sentence.
Which of the following is not required to find the pH of a given solution?
What is thermit process?
Write word equation for the following molecular equation:
CuCo3 → CuO + CO2 [g]
Word equation:
State the characteristics or indications occurring in the above reaction.
Give word equation for the following chemical reaction and give the names of the product formed.
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
Balance the following simple equation:
C + O2 → CO
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution.
- Write the name of the compound formed and its colour.
- Write a balanced chemical equation for the reaction involved.
