Question

I dare u all if u can answer this question

1.FILL IN THE BLANKS
1.Zinc oxide is __________ when hot and __________when cold.
2.Stretched rubber band involves __________change.
3.Magnesium ribbon burn with a dazzling __________light.
4. when washing soda is added to ___________carbon dioxide gas is produced .
5.Rotation of fan is ________change.
6.A glowing of tube light is a __________
4.Chemical name of washing soda is _________
5.Rusting is faster in ___________water.
6.Two methods by which rusting can be prevented by _______and ________

Answer 1

2.reversible change
3. white
4.4.Chemical name of washing soda is sodium hydrogen carbonate
5. salt water
6. alloying and painting also galvanisation