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Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 20/5/18
2Mg+ O2=2MgO
Is this redox reaction?
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 20/5/18
Q. Ions of an element are chemically inactive because of the octet configuration of their valence shells .then how do this reaction takes place?
(i)
M
n
2
+
a
q
+
H
2
S
g
→
M
n
S
+
H
+
a
q
Answer
2
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 9/5/18
If the oxidation number of hydrogen or oxygen changes will it be considered as an oxidation or reduction reaction?
Answer
2
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 9/5/18
What is the electronic configuration of Manganese according to klmn concept?
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 9/5/18
Oxidation number of Mn in potassium permanganate is 7. How is this possible because Mn has less than 7 electrons in valence shell?
Answer
1
Omm Prasad
Subject: Chemistry
, asked on 1/5/18
Please solve the 28 number.
Please do not provide any link.
Q.28. State what will be the effect of each of the following solutions on blue litmus -
i]
K
2
C
O
3
soln. ii] KCl soln. iii]
N
H
4
N
O
3
soln.
Answer
1
Omm Prasad
Subject: Chemistry
, asked on 30/4/18
Please solve the 15 th number.
Please do not provide any link.
Q.15. Convert i]
N
a
H
C
O
3
ii]
N
a
2
C
O
3
to unstable carbonic acid by action with dil.
H
2
S
O
4
. State the reason why ammonia is evolved when an ammonium salt and alkali are heated.
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 26/4/18
What is bleaching
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 24/4/18
Plz EXPLAIN
Q4. In the reaction : PbS(s) + 4H
2
O(aq)
→
PbSO
4
(s) + 4H
2
O(
l
). Which is oxidizing agent and which is reducing agent?
Answer
2
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 12/4/18
What is sulphuric acid reducing to what?
Q.(e). Reducing property of sulphuric acid is used.
H
2
S
O
4
(
C
o
n
c
.
)
+
H
2
S
g
→
2
H
2
O
l
+
2
S
(
s
)
+
S
O
2
g
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 12/4/18
What is the difference between phosphoric acid and orthophosphoric acid?
Answer
1
Rajay Rajay Chakrasingh
Subject: Chemistry
, asked on 12/4/18
In ICSE, if the question is asked :show that sulfuric acid is an oxidising agent what would be the correct answer ?
Answer
2
Tanu Verma
Subject: Chemistry
, asked on 31/3/18
Difference between: the chemical nature of an aqueous solution of HCL and an aqua solution of NH?
Answer
2
Soumili Chakraborty
Subject: Chemistry
, asked on 16/8/22
What are the various indicators by which we can test the acidity and alkalinity of substances ? How do they work ?
Answer
1
Zeba Chowdhury
Subject: Chemistry
, asked on 6/8/22
Why is ferric chloride stored in the environment of Cacl2?
Answer
1
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3
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Next
What are you looking for?
Is this redox reaction?
(i)
Please do not provide any link.
Q.28. State what will be the effect of each of the following solutions on blue litmus -
i] soln. ii] KCl soln. iii] soln.
Please do not provide any link.
Q.15. Convert i] ii] to unstable carbonic acid by action with dil. . State the reason why ammonia is evolved when an ammonium salt and alkali are heated.
Q4. In the reaction : PbS(s) + 4H2O(aq) PbSO4 (s) + 4H2O(). Which is oxidizing agent and which is reducing agent?
Q.(e). Reducing property of sulphuric acid is used.