Select Board & Class

Login
Almas asked a question
Subject: Chemistry, asked on on 18/1/17
4.5 g of aluminium is deposited at cathode from Al3+ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H+ ions in solution by the same quantity of electric discharge will be  
Harshita Yadav asked a question
Subject: Chemistry, asked on on 12/6/17
the molar conductivity of 0.1 M CH3COOH solution is 4.6cm2 per mol . what is the conductivity and resistivity of the solution
Priyanka asked a question
Subject: Chemistry, asked on on 31/10/17
For a dilute solution 2.5 g of a non volatile non electrolyte solute in 100 g of water , the elevation in boiling point at 1 atm pressure is 2 degree celcius . Assuming concentration of solute is much lower than the concentration of solvent the vapour pressure (mm of Hg ) of the solution is (take Kb = 0.76 K Kg mol^-1)
Shifa asked a question
Subject: Chemistry, asked on on 21/8/16
PP

35.  Calculate EMF of the cell        A A+3 0.1 mB+2 0.01 m B      Given E° A A+3 = 0.75 V                 E° B B+2 = 0.45 V(1)  0.30 V                             (2)   1.21 V(3)  0.26 V                             (4)    0.80 V
Almas asked a question
Subject: Chemistry, asked on on 9/10/16
Ag/AgCl(s)/KCl electrode is :-
(1) Reversible w.r.t cation
(2) Reversible w.r.t Cl– ion
(3) Reversible w.r.t K+ ion
(4) Reversible w.r.t Ag+ ion
Kindly explain.
Sandali Khare asked a question
Subject: Chemistry, asked on on 25/2/18
When a bright silver object is placed in the solution of gold chloride, it requires a golden tinge but nothing happens when it is placed in a solution of copper chloride. Explain the behavior of silver
Bhavya Arora asked a question
Subject: Chemistry, asked on on 12/6/18
Name the cell used in hearing aids. Write the cell reaction. Why do they give consistent supply of current at a low potential?
Bhavya Arora asked a question
Subject: Chemistry, asked on on 26/5/18
What is standard potential of the Tl3+/Tl electrode? Tl3+ + 2e->Tl+ E =1.26V Tl+ + e->Tl E=-0.336 Tl3+ + 3e->Tl
Aishwarya Trivedi asked a question
Subject: Chemistry, asked on on 7/7/17
Which of the following is true in the case of Zn-Cu cell? 

1. ​The flow of electrons takes place from copper to zinc 
2. E0red of copper electrode is less than that of zinc electrode     
3. Zinc acts as an anode and copper as cathode 
4. All are correct
Mitali asked a question
Subject: Chemistry, asked on on 10/12/16
in Pt|H2|H+ what does Pt stand for??
Keerthi asked a question
Subject: Chemistry, asked on on 20/6/17
the volume of cl2 at NTP produced during electrolysis of Mgcl2 which produces 6.5 g mg (at wt of mg = 24.3 and T = 273.15 k)
Aishwarya Trivedi asked a question
Subject: Chemistry, asked on on 6/7/17
​CORRECT OPTION?
Akshay Kumar Pandey asked a question
Subject: Chemistry, asked on on 19/5/16
What does liquid junction potential mean? Plz explain each and every point associated with it.
Mitali asked a question
Subject: Chemistry, asked on on 10/12/16
In Daniel cell , how does the zinc electrode start loosing electrons when there is no external force acting on the cell? means without a battery how could the zinc rod loose electrons,as soon as it is dipped in the solution?
Please help if u can .Thank U.
Sai Prasad B asked a question
Subject: Chemistry, asked on on 26/7/17
Pls answer this:
At  what ratio of [Br-], [Cl-] ions, emf of cell would be zero. Ksp AgBr = 5x10​-13 ; Ksp AgCl = 10-10 
Ag | AgBr(s) , Br-(aq) || AgCl(s) , Cl-(aq) | Ag
Aishwarya Trivedi asked a question
Subject: Chemistry, asked on on 6/7/17
​CORRECT OPTION?
Aishwarya Trivedi asked a question
Subject: Chemistry, asked on on 6/7/17
​CORRECT OPTION?
Scarlett asked a question
Subject: Chemistry, asked on on 14/10/16
while calculating the molar conductivity of acetic acid at infinite dilution in the below problem why do we subtract NaCl  while we add rest of the quantities?
qts: molar conductivies at infinite dilution of sodium acetate is 91.0 ,HCL is 426.2 and NACL is 126.5 .
Deeksha Tanwar asked a question
Subject: Chemistry, asked on on 10/6/17
Find the charge in coulambs on 1 gm of {N}ki power (-3)?
Shifa asked a question
Subject: Chemistry, asked on on 21/8/16
​e
Shifa asked a question
Subject: Chemistry, asked on on 21/8/16
​​ Please answer 
Shifa asked a question
Subject: Chemistry, asked on on 24/8/16
​1
Shifa asked a question
Subject: Chemistry, asked on on 24/8/16
1​
Url X asked a question
Subject: Chemistry, asked on on 7/9/17
why standard reduction potential are called standard electrode potential ?
Aishwarya Trivedi asked a question
Subject: Chemistry, asked on on 6/7/17
​CORRECT OPTION?
kirthikkirthik... asked a question
Subject: Chemistry, asked on on 2/10/17
what is a buffer solution?
Dhruvin Pandya asked a question
Subject: Chemistry, asked on on 18/6/19

A : Ag can displace Zn from the solution of its salt.
R : Reduction potential of Zn is greater than Ag.

Options:

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark(1).

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark(2).

If Assertion is true statement but Reason is false, then mark(3).

If both Assertion and Reason are false statements, then mark(4).
Ayesha Ateeq asked a question
Subject: Chemistry, asked on on 21/8/17
difference between d/dt rate and the K rate..plzzz
Tanishka Gupta asked a question
Subject: Chemistry, asked on on 26/8/18
Solve question 8 with explanation as soon as possible
Deepshikha asked a question
Subject: Chemistry, asked on on 15/3/20
conductiviy of the cell is 0.001M cell constant is 0.195 c/m R = 1950 ohm T=25degree celsius at 25 degree c the conductivity of 0.001 M of sol. is
What are you looking for?

Syllabus