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Manjusha Sidar
Subject: Chemistry
, asked on 17/5/15
MnO3 in acidic medium dissociates in
Answer
1
Manjusha Sidar
Subject: Chemistry
, asked on 15/5/15
When S
2
O
8
2
-
oxidise Fe
2
+
then product formed is
(1) S
2
O6
2
-
(2)SO4
2
-
(3)S
2
O
3
2
-
(4)S0
5
2
-
Answer
1
Jainam Khakhra
Subject: Chemistry
, asked on 13/5/15
Prove if True or False:
Tin shields in severe winter falls to powder due to oxidation of tin.
Answer
1
Jainam Khakhra
Subject: Chemistry
, asked on 13/5/15
Why is H3PO4a stronger oxidant than H3PO3but a weaker acid than H3PO3?
Answer
1
Sandra Jacob
Subject: Chemistry
, asked on 8/5/15
The disproportionation reaction is/are
a) 2HCHO + OH
-
----------->HCOO
-
+CH
3
OH
b) CH
3
CHO-------------->CH
3
COOH
c) 4H
3
PO
3
---------->3H
3
PO
4
d) Both a and c
e) a, b and c
Answer
1
Sandra Jacob
Subject: Chemistry
, asked on 8/5/15
A mono proticacid in 1M solution is 0.01% ionized. The dissociation constant of this acid is
A)10
-4
B)10
-6
C)10
-8
D)10
-2
E)10
-5
Answer
1
Umer Faroque
Subject: Chemistry
, asked on 28/4/15
How to find co-valency of sulphur?
Answer
2
Amey Sharma
Subject: Chemistry
, asked on 22/4/15
what is the definition of oxidant in terms of oxidation number ?
Answer
1
Dd
Subject: Chemistry
, asked on 23/4/18
MnO
4
2-
in neutral aqueous medium is disproportionated to 2/3 mole of MnO
4
2-
and 1/3 mole of MnO
2
can u explain how in detail and
do we have to learn the reactions for this??also help me how to write the reaction for this pls
Answer
1
Pranjal Gupta
Subject: Chemistry
, asked on 12/4/15
Please help soo.
Thank you.
Answer
1
Kali Prasad
Subject: Chemistry
, asked on 7/4/15
Which of these will not be oxidized by Ozone? And Why?
(a)KI
(b)FeSO
4
(c) KMnO
4
(d) K
2
MnO
4
Answer
2
Kali Prasad
Subject: Chemistry
, asked on 7/4/15
If the molecular wt. of Na
2
SO
3
snd I2 are M
1
and M
2
respectively,Then what will be the equivalent wt. of Na
2
S
2
O
3
and I
2
in the following reaction?
2 S
2
O
3
2
-
+ I
2
à S
4
O
6
2
-
+2I
-
Answer
1
Kali Prasad
Subject: Chemistry
, asked on 4/4/15
In the Balanced Chemical reaction
IO
3
-
+ a I
-
+b H
+
à c H
2
O +d I
2
a,b,c and d respectively correspond to which value?
Please explain it as well.
Answer
1
Kali Prasad
Subject: Chemistry
, asked on 4/4/15
In the Redox reaction,
x KMnO
4
+NH
3
à y KNO
3
+ MnO
2
+ KOH + H
2
O
What will be the value of x and y.
Answer
1
Kali Prasad
Subject: Chemistry
, asked on 4/4/15
a K
2
Cr
2
O
7
+ b KCl +c H
2
SO
4
à x CrO
2
Cl
2
+ y KHSO
4
+ z H
2
O
BalanceThe above equation.What will be the the coefficient a,b,c and x,y,z.
Please explain it as well.I know how to balance Redox reaction but cannot solve this problem.
Answer
1
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What are you looking for?
(1) S2O62-
(2)SO42-
(3)S2O32-
(4)S052-
Tin shields in severe winter falls to powder due to oxidation of tin.
a) 2HCHO + OH------------>HCOO-+CH3OH
b) CH3CHO-------------->CH3COOH
c) 4H3PO3---------->3H3PO4
d) Both a and c
e) a, b and c
A)10-4 B)10-6 C)10-8 D)10-2 E)10-5
MnO4 2- in neutral aqueous medium is disproportionated to 2/3 mole of MnO4 2- and 1/3 mole of MnO2 can u explain how in detail and do we have to learn the reactions for this??also help me how to write the reaction for this pls
Please help soo.
Thank you.
(a)KI
(b)FeSO4
(c) KMnO4
(d) K2MnO4
2 S2O32- + I2à S4O62- +2I-
IO3- + a I- +b H+à c H2O +d I2
a,b,c and d respectively correspond to which value?
Please explain it as well.
x KMnO4 +NH3 à y KNO3 + MnO2 + KOH + H2O
What will be the value of x and y.
BalanceThe above equation.What will be the the coefficient a,b,c and x,y,z.
Please explain it as well.I know how to balance Redox reaction but cannot solve this problem.