Question

a) Calcium carbonate is heated
Mar aong to, ango
caco laot con
What happens when iron nail is dipped in copper sulphate solution ? Write the balanced
2. Reduce, reuse and recycle (GR) will contribute to sustainable development of the environment
Justify this stetement with reasons.
3. What are functional groups ? Write 2 example,
OR
What is hydrogenation of oils ? Write the industrial application of hydrogenations of oils.
64Draw the ray diagram showing convergence of light rays in convex lens. 86
Answer the following quesitons:
5x3=15
35. Draw the diagram showing vertical section of human heart and label the following parts.
1) septum
ii) Aorta
26. Define refractive Index. What is the meaning the refractive index of water is 1.33
OR
Write mirror formula write any 2 sigh conventions for reflection in spherical mirross.
7. Explain the struture of a plant and the process of production of electricity
OR
What are the advantages and disadvantages of using solar cooker? Are there places where
solar cookers would have limited ?
The atomic number of two element A and B are 19 and 20 respectively which element exhibits
highest metalic property? Why? Write the moleuler formula of the compound formed when these
element combine with the element "X'having atomic number 17!​

Answer 1

Answer:

I am not getting your question

Answer 2

Answer:

I am not getting your question