NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Prajna
Subject: Science
, asked on 23/2/18
What are the byproducts of electrolysis of common salt
Answer
2
Shreya Krishnan
Subject: Science
, asked on 23/2/18
Give a lebbeled diagram of electrorefining of silver
Answer
2
Shreya Krishnan
Subject: Science
, asked on 23/2/18
Name the product formed when CO2 dissolved in H2o
Answer
1
Francis
Subject: Science
, asked on 23/2/18
a) What are the changes we can see when the circuit becomes closed ?
b) Mention the effect of electric current that can be observed when the circuit is closed.
c) Label A, B, C and D.
Q.31. Study the diagram and give answers for the following questions
Answer
2
Abin George
Subject: Science
, asked on 22/2/18
Mercury is the only metal present in liquid state. Can we use it as an electrolyte?
Answer
1
Padmavati Dhariya
Subject: Science
, asked on 20/2/18
I want a brief description of electroplating with an example and a well labeled diagram?
Answer
1
Ishaan Gupta
Subject: Science
, asked on 10/2/18
Two wires P and Q are carrying electric currents either into or out of the page. A, B and C are plotting compasses placed in between P and Q as shown in figure. Which of the following options about the direction and amount of the current in P and Q is correct?
Direction
Amount
A.
Same
Larger in P than in Q
B.
Same
Smaller in P than in Q
C.
Different
Larger in P than in Q
D.
Different
Smaller in P than in Q
Answer
1
Nysa Singh
Subject: Science
, asked on 4/2/18
What electrolyte solution we should take for electroplating iron key with gold???plzz give any easy solution name except gold cyanide...
Answer
1
Nysa Singh
Subject: Science
, asked on 4/2/18
Diagramatically show the electroplating of iron key with gold
Answer
3
Akshat Singh
Subject: Science
, asked on 2/2/18
name the chemicals used to extract h2 as fuel.
Answer
1
Harshwardhan Khare
Subject: Science
, asked on 1/2/18
Observe given figure
Which of these two circuits A or B shows the correct arrangement? Explain
Answer
4
Srijita Majumder
Subject: Science
, asked on 29/1/18
Is distilled water a conductor of electricity? Give reasons.
Answer
5
Srijita Majumder
Subject: Science
, asked on 29/1/18
When the free ends of a tester are dipped into a solution the magnetic needle shows deflection. Can u explain the reason?
Answer
2
Apurv Anand
Subject: Science
, asked on 16/1/18
Q 2,3,3,4 n 5. Pls ans
Q2. What happens to the needle of a magnetic compass kept nearby when electric current switched on in a wire? Why does this happen ?
Q3. How can a compass be used as tester? Do you know any other used to defect current in electrolytic cell? Explain it.
Q4. Draw a diagram showing the electroplating of copper on an iron spoon and explain process also.
Q5. Describe the electrolysis of acidulated water with help of a diagram.
Answer
1
Harshwardhan Khare
Subject: Science
, asked on 16/1/18
How can we find weather the electric current is passed or not
Answer
1
Prev
1
2
3
4
5
Next
What are you looking for?
b) Mention the effect of electric current that can be observed when the circuit is closed.
c) Label A, B, C and D.
Q.31. Study the diagram and give answers for the following questions
Which of these two circuits A or B shows the correct arrangement? Explain
Q2. What happens to the needle of a magnetic compass kept nearby when electric current switched on in a wire? Why does this happen ?
Q3. How can a compass be used as tester? Do you know any other used to defect current in electrolytic cell? Explain it.
Q4. Draw a diagram showing the electroplating of copper on an iron spoon and explain process also.
Q5. Describe the electrolysis of acidulated water with help of a diagram.