Question

which of the following sentences is correct:
a) Cutting
of
log
of
wood
into
pieces
is
a
physical change

b)
Lime water
turns
milky
on
passing
CO2
through
it.

c)
Hydrogen
gas
is
produced
when
acetic
acid
is
added
to
a
solution
of
a
sodium

hydrogen
carbonate.

d)
Explosion
of
a
fire work
is
a
chemical
change. ​

Answer 1

Answer:

b

Explanation:

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