Question

Ask any 1 mark difficult questions from class 10 science cbse
At least 5 .....
Don't post answer unnecessarily.

Answer 1

1.which is the colour most absorbed by leaf for photosynthesis?

2.can photosynthesis occurs without o2 and c02. If so can it occurs with an acid?

3.wavelength of red and blue light

4.visible wave length of human eyes

5.which is stronger single or double or triple bond

which fuel is used in space shuttles even is space is vacuum

6. name of hydrocarbon wax used in candles

7. water molecule formular for magnesium, iron, copper

8. formula for rust

9. any three ores of aluminium

10. ore of zinc and copper

11. aluminium oxidises and corrodes but we use it for cooking

12. what happens if  soda bottle is opened with reference to ph value

thats all