Question

Fro
చకం
$0-2
2e
FIONAL INSTITUTIONS SOCIETY
JA SOCIAL WELFARE RESIDENTIAL
ntact
Fotos
Blue litmus
suhstances Red intrus
to bue
Baking
Mineral water
Retogent coop
Tarming
1-2111
Which of the above substances changed blue stoms to
red 2
which
of the above sstttances changed red litmus
I to blue.
the above whstances and not change
which of
popo .
both​

Answer 1

Answer:

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