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JEEMAIN and NEET
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Chemistry
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Chemistry in everyday life
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Q)
To which class of dyes does phenolphthalein belong ?
(
a
)
a
z
o
d
y
e
s
(
b
)
t
r
i
p
h
e
n
y
l
m
e
t
h
a
n
e
d
y
e
s
(
c
)
n
i
t
r
o
d
y
e
s
(
d
)
p
h
t
h
a
l
e
i
n
d
y
e
s
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