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Subject: Chemistry, asked on 5/3/17

Solve ques 3

Subject: Chemistry, asked on 3/3/17

Pls. Answer the question

Subject: Chemistry, asked on 3/3/17

Solve this:

Subject: Chemistry, asked on 2/3/17

balance the 2nd one using oxidation no method.

Subject: Chemistry, asked on 27/2/17

Q.a and b part

Subject: Chemistry, asked on 26/2/17

Q.A,B part

Subject: Chemistry, asked on 26/2/17

at what conc. of Cu2+(aq) will electrode potential become equal to its standard electrode potential ?

Subject: Chemistry, asked on 26/2/17

name the indicator used in redox titration involving K2Cr​2O7 as an oxidising agent

Subject: Chemistry, asked on 21/2/17

Write the balance equation for the following :
(1)  BF3 + LiH  -
(2)  B2H6 + H2O -
(3)  NaH + B2H6 -
(4)  H3BO3 -
(5)  Al + NaOH -
(6)  B2H6 + NH3 -

Subject: Chemistry, asked on 21/2/17

​​balance following redox reaction by ion electron method   (c2r2o7)^ 2- + fe^2+ gives fe^3+ + cr^3+   in acidic medium

Subject: Chemistry, asked on 21/2/17

calculate the uncertanity in position of an electron if uncertanity in its velocity is 0.002% . given   mass of electron = 9.1 x 10^-34 kg m^2 +s^-1​

Subject: Chemistry, asked on 20/2/17

an acidified k2cr2o7  paper turns green on being exposed to so2. why

Subject: Chemistry, asked on 20/2/17

[CuCl4]2- is formed but [CuI]2- is not formed. why?

Subject: Chemistry, asked on 16/2/17

When we say that addition of an electropositive element is reduction then why do we not say that removal of an electropositive element will be oxidation?
Rather we say that removal of an electronegative element will be oxidation but!
If we give it a thought then electropositive and electronegative are two different terms that put innocent  creatures like me in a confusion...!..:p

Subject: Chemistry, asked on 12/2/17

Can the reaction Cr2O72-+H2O⇌2CrO42-+2H+ be considered as a redox reaction

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