Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Questions
>>
JEEMAIN and NEET
>>
Chemistry
>>
Environmental Chemistry
Next similar question
Answer
Comment
Share
Q)
Chemical oxygen is determined by using
(
a
)
M
e
t
h
y
l
o
r
a
n
g
e
(
b
)
K
2
C
r
2
O
7
+
50
%
H
2
S
O
4
(
c
)
C
a
O
C
l
2
+
50
%
H
2
S
O
4
(
d
)
A
l
u
m
+
C
a
O
Share
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
Found
1
answer. Click to login & view.
Next Similar Question >
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...
Please Wait
