Question

Ammonia is collected by downward displacement of water. *


True

False

 

This is a required question

Q9. Pipette is used for measuring liquids by sucking the liquid from top upto the marked level and closing the upper end with the thumb. *



True

False

Q10. Sodium hydroxide softens stains on wool: *



True

False

Q11. Alchemists were people who were predecessors to the Modern Chemist: *



True

False​

Answer 1

Answer:

don't know of first

Q9 true

don't know of 10 and 11 higher than my level

Answer 2

Answer:

1. true.
2. true.
3. false.
4. false.

Explanation:

Hope this helps you.