Question

1,2,3,4,5,6,7,8 ans pls​

Answer 1

1)c. Na2o.

2)c. radicle.

3)a.light ray on convex surface.

4)c.biogas.

5)c. 2AgBr=Ag +Br.

6) a.or d.

7)d.none of these.

8)a. 25cms.

9)a. analogue organs.

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Answer 2

1. C Na
2. c redicle
3. C by convex mirror
4. C biogas
5. B 2H2 + O2 -> 2H2O
6. D it is an absorber of CO2
7. A north - south
8. A 25 cm
9. A analogous organs