Question

Activity Card
Class :IX
UNIT - 5
Acids, Bases and Salts
Activity - 1
table.
Some activities are described in the following table. Analyse it and complete the
Activity
Inference
2ml of vinegar is
taken in a test tube.
Dip a blue litmns paper
in it.
Observation
blue lithoces
tarbed esto
red
Take some calcium
carbonate in a boiling
tube, add dilute
hydrochloric acid to it.
Take some water
in a beaker, add
some quick lime
(calcium oxide) and stir it.
Add a drop of red litmus
solution in it
Hint: Blue litmus paper can be made by rubbing the petals of shoe flower on a paper
Egg shells can be used as calcium carbonate
Lime juice or vinegar can be used instead of hydrochloric acid​

Answer 1

i think this is english subject not science