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Ashutosh Sahoo
Subject: Science
, asked on 13/1/17
name three types of substances in which an electric current can produce a chemical effect.
Answer
1
Ashutosh Sahoo
Subject: Science
, asked on 24/12/16
name two metals which are purified by using the chemical effect of current (or electrolysis)
Answer
2
Ashutosh Sahoo
Subject: Science
, asked on 24/12/16
name one compound which is decomposed into hydrogen and oxygen by using the chemical effect of electric current
Answer
10
Ashutosh Sahoo
Subject: Science
, asked on 13/1/17
A strip of impure cooper metal is given to you .Describe briefly how will you purify it by using the chemical effect of electric current.Draw a labelled diagram of the experimental set up used for this purpose.
Answer
1
Sujal Gupta
Subject: Science
, asked on 7/10/16
describe different uses of chemical effects of electric current
Answer
5
Ashmit
Subject: Science
, asked on 8/1/17
What type of current does a dry cell produce?
Answer
2
Sanskriti Mittal
Subject: Science
, asked on 22/12/16
Leaching is a process of ______ .
a. oxidation b.reduction c.refining d.concentration
Answer
8
Ashutosh Sahoo
Subject: Science
, asked on 13/1/17
Name one compound which is decomposed into hydrogen and oxygen by using chemical effect of electric current.
Answer
1
Dhairy Shrivastava
Subject: Science
, asked on 18/12/16
reaction with metals . potassium, sodium , iron ,zinc,copper magnesium
Answer
5
Hemaanee
Subject: Science
, asked on 25/2/17
naveen sets up a circuit for the purification on copper. identify the following:
a. electrode A connected to positive terminal of the battery
b.electrode B connected to negative terminal of the battery
c.the solution
d. is it safe for the electrician to carry out electrical repairs outdoor during heavy downpour? justify your answer.
e.why is electroplating needed in automobile industry? name two metals used for it.
Answer
4
Vaibhav Singh
Subject: Science
, asked on 16/9/16
can you give differences between metal and non metal
Answer
9
Chaitanaya Mahajan
Subject: Science
, asked on 30/9/16
are all metal oxides are basic
Answer
9
Alvin Joseph
Subject: Science
, asked on 5/12/16
is gold brittle?If not why then it is mixed other metals ?
Answer
2
Nivedita Tiwari
Subject: Science
, asked on 16/10/16
C+BSO
4
=CSO
4
+B
A+BSO
4
= No reaction
CSO
4 +
A = No reaction
The correct order of decreasing reactivity of A,B & C is.
Answer
1
Ishwari
Subject: Science
, asked on 17/9/16
Why do we put salt on sidewalks when there is snow?
Answer
8
1
2
Next
What are you looking for?
a. oxidation b.reduction c.refining d.concentration
a. electrode A connected to positive terminal of the battery
b.electrode B connected to negative terminal of the battery
c.the solution
d. is it safe for the electrician to carry out electrical repairs outdoor during heavy downpour? justify your answer.
e.why is electroplating needed in automobile industry? name two metals used for it.
C+BSO4 =CSO4+B
A+BSO4 = No reaction
CSO4 +A = No reaction
The correct order of decreasing reactivity of A,B & C is.