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 chemical equation:
\[\ce{NH3 -> N2 + H2}\]
Rewrite the following information in the form of a balanced chemical equation:
Magnesium burns in carbon dioxide to form magnesium oxide and carbon.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
Balance the following chemical equation :
Na20 + H20 → NaOH
Balance the following equation. Also name the product formed.
`"CO" + "O"_2 → " CO"_2`
Write the balanced chemical equation of the following reaction.
iron pyrites(FeS2) + oxygen → ferric oxide + sulphur dioxide
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Light energy
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
Is the equation given above a balanced equation. Give reasons.
Balance the following simple equation:
Al + H2SO4 → Al2(SO4)3 + H2
Which of the following is not a physical change?
