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Yashwardhan
Subject: Chemistry
, asked on 19/2/16
A student constructed an electrochemical cell by using two electrodes: Zn/Zn
2+
(1M) and Mg/Mg
2+
(1M) and represented it as Zn/Zn
2+
(1M)||Mg
2
+
(1M)/Mg.
Is the representation correct? Justify. Given E
0
Mg2
+/Mg
=-2.37V;E
0
Zn2+/Zn
=-0.76V
Answer
1
Samriddhi Dhawan
Subject: Chemistry
, asked on 18/2/16
When benzaldehydeis oxidised to give benzoic acid then the oxidation state of carbon of aldehyde group changed from which oxidation state to which oxidation state?
Answer
1
Samriddhi Dhawan
Subject: Chemistry
, asked on 18/2/16
The number of moles of H
2
O
2
required to completely react with 400 ml of 0.5 N KMnO
4
in acidic medium are?
Answer
1
Rishav Das
Subject: Chemistry
, asked on 15/2/16
Name any 2 solutions react to give a yellow precipitate.
Answer
2
Venkatesh P.
Subject: Chemistry
, asked on 18/1/16
in the the image question is there . for the question on calculation of electrode potential why we should findΔG
o
to calculate E
o
. why can't we instead reverse equation one and add the two equations to get E
o
value .
give me a detailed explanation
Answer
3
Smaranika Samal
Subject: Chemistry
, asked on 17/1/16
how to find oxidation number of SULPHUR in FeSo4(NH4)2So4.H2o
Answer
1
Syed Mansoor
Subject: Chemistry
, asked on 23/10/15
balance in basic medium Zn + NO3- gives Zn2+ +NH4+
Answer
1
Prakhar Joshi
Subject: Chemistry
, asked on 22/10/15
can you explain me the solved problem 8.7 of redox reactions.
Answer
1
Swetha P Krishnan
Subject: Chemistry
, asked on 17/10/15
balance in acid medium: Zn+ NO
3
-
gives Zn
2+
+ NH
4
+
Answer
1
Siddharth Nair
Subject: Chemistry
, asked on 12/10/15
Give any five industrial applications of non metal displacement reactions.
Answer
1
Sarun
Subject: Chemistry
, asked on 9/9/15
the standard potential corresponding to the reaction Au3+ + 3e- = Au is 1.42V. Predict if gold can be dissolved in 1M of HCland on passing hydrogen gas metallicgold will be precipitated or not?
Answer
1
Manan
Subject: Chemistry
, asked on 12/6/15
how to calculate oxidation number
Answer
1
Jasmin
Subject: Chemistry
, asked on 24/5/15
CrO
7
2–
+ 2I
–
+ 14H
+
→ I
2
+ 2Cr
3
+
+ 7H
2
O
Which are not in balanced position? Options 1. H
+
and H
2
O 2. CrO
7
2–
and Cr
3
+
3. I
–
and I
2
4. All are balanced
Answer
1
Sarun
Subject: Chemistry
, asked on 23/5/15
Dear Teacher,
Please can you put up a video about salt analysis for Nitrates. I missed this tests in school, as I was sick and would really appreciate if you could teach me the salt analysis for Nitrates.
Thank you,
Answer
1
Amey Sharma
Subject: Chemistry
, asked on 20/5/15
When KBrO3reacts with excess KBrin acid medium Br2is liberated. The ratio of mass of Br2liberated to the mass ofKbrO3reacted will be
Answer
1
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What are you looking for?
Is the representation correct? Justify. Given E0Mg2+/Mg=-2.37V;E0Zn2+/Zn=-0.76V
give me a detailed explanation
Which are not in balanced position? Options 1. H+ and H2O 2. CrO72– and Cr3+ 3. I– and I2 4. All are balanced
Please can you put up a video about salt analysis for Nitrates. I missed this tests in school, as I was sick and would really appreciate if you could teach me the salt analysis for Nitrates.
Thank you,