Question

10. Identify the type of reaction taking place in the following equations.
( CH + 20. CO + 2H,0
(ii) Pb(NO), + 2KI - PbI, + 2KNO,
(iii) CaO + H2O -- Ca(OH),
(iv) Cuso, + Zn → ZnSO + Cu
11. Write the balanced equation for the reaction between magnesium and hydrochloric acid.
Name the product obtained. Identify the type of reaction.
[Delhi 2012]
12. Describe an activity to observe what happens when quick lime is added to water, taken in
a beaker. State two important observations and name the type of reaction.
13. What is the colour of ferrous sulphate crystals? How does this colour change after heating?
Write the chemical reaction involved.
[Delhi 2012]
14. Identify the substances that are oxidised and the substances that are reduced in the
following reactions:
INCERT
D 4Na(s) + 0,(g) → 2Na,O(s) (ii) -CuO(s) + H2(g) - Cu(s) + H, 0(1)
15. What is an oxidation reaction? Identify in the following reaction:
Zn0 +G - Zn + CO
The substance oxidised, and (ii) the substance reduced.
16. Give an example of decomposition reaction. Describe an activity to illustrate such a
reaction by heating.
17. The following diagram displays a chemical reaction. Observe
carefully and answer the following questions:
(i) Identify the type of reaction that will take place and define it.
How will the colour of the salt change?
(ii) Write the chemical equation of the reaction that takes place.
(a) Mention the commercial uses of this salt.
Silver Chloride​

Answer 1

Answer:

10) 1) Double displacement reaction

2) Double displacement reaction

3)Combination Reaction

4)Diaplacent Reaction

11) Mg + 2HCl --- MgCl2 + H2 (balanced)

Product= Salt and Hydrogen gas

Type of reaction= Combination Reaction

12) If quick lime is added to water CO2 gas is obtained

And white ppt. insoluble substance is formed.

13) The ferrous sulphate crystals are light green in colour. The gas emitted has the characteristic odour of burning sulphur. On heating, the colour changes from light green to white. On further heating, the white substance changes to dark brown solid.

14) 1) Na - Oxidised

2) CuO- Reduced , H - Oxidised

15) Oxidation reaction is the reaction in which oxygen is added to the substance and removal of hydrogen is observed in a substance.

C is getting Oxidised

16) Decomposition reaction is the reaction in which a single product breaks down to form two or more substances or products.

EXAMPLE- Burning of Calcium carbonate

CaCO3 ----- Ca(OH)2 +Heat energy

17) Diagram not available

Hope it's clear for my hardwork I deserve a Mark as Brainiest