Question

True or False
1. Potassium permanganate contains potassium
and manganese only
2. Potassium permanganatechsolver in water
and forms a colourless solution
3. Ethyl alcohol has more elements than
4. Ethyl aleohol has a higher bon point than

5. Brownian motion intensifies on the reasing the
temperature
Gases can diffuse against gravity
17. Steam causes more severe burns than
boiling water
8. Solids have definite volunue and
detinte shape
9. Liquids have defimte volume, but no
definate shape
10. Gases have neither definite volume nor
definite shape
11. Solids are always anbending and inflexible
12. Fluids include both liquids and gases.
13. Evaporation is an exothermic phenomenon.
14. Boiling is a surface phenomenon.
15. Honey is denser than water.
16. An iron ball expands on heating,
17. An iron atom expands on heating
18. Sulphur is yellow, but sulphur atoms are
not yellow
19. Liquid oxygen is blue in colour.
20. Lord Kelvin invented the Celsius scale of
temperature.
21. The standard room temperature is 298 K.
22. We perspire more on a bumid day than on a
dry day.
23. A copper coin will diffuse into a silver coin
when they are kept in mutual contact.
24. Rock salt is an example of ionic solid.
25. Dry ice is an example of molecular solid.
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Answer 1

Answer:

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