Select Board & Class
why should you not touch electrical appliances with wet hands
uses and disadvantages of electroplating?
ARE ACIDS GOOD CONDUCTORS OF ELECTRICITY?
Explain the electrolysis of water with the help of a well labelled diagram also write the chemical reaction taking places at the electrodes.
Nichrome is a/an
a) Conductor
b) insulator
c) magnet
d) semiconductor please give me the answer
In the process of electroplating of copper on a metallic spoon, the iron spoon is made the cathode. A thin sheet of pure copper is made the anode. When electricity is passed through the solution, Cu2+ ions move towards the cathode and get reduced to copper metal. This copper metal gets electroplated on the object, i.e., the metalic spoon.
The sulphate ions move towards anode. Here the sulphate ions do not get oxidied. Instead, the copper metal of the anode gets oxidised to Cu2+ ions. These copper ions go into the solution..............
But, why does ths happens? Why does the sulphate ions do not grt oxidised? Instead, why does the copper metal of the anode gets oxidised? Please explain me as fast as possible. I've to give an exam. Hope to get the answer from a MERITNATION EXPERT.
Prepare a list of objects around you that are electroplated?
why acids,bases and salts are good conductors of electricity
why tin can are used to store food instead of iron can
the health concerns associated with chromium electroplating and how are people trying to resolve them
Do honey and milk conduct electricity ?
give three applications of chemical effect of electric current?
a good example of electroplating...
Is alcohol a good conductor of electricity?
I read that milk is a good conductor of heat .What makes it
conduct?
Draw an electrolytic cell and label the following
a) anode
b) cathode and
c) electrolyte
GIVE TEN EXAMPLE OF CATIONS {WHICH CARRY POSITIVE CHARGE] AND ANIONS [CONTAIN NEGATIVE CHARGE]
WHY IS LEMON JUICE A GOOD CONDUCTOR OF ELECTRICITY ?
for what purpose led's are used.
Write a short note on electroplating
Please answer the following questions -
What are the advantages of electroplating iron with chromium?
what happens when electric current is passed through tap water?
plzzz... give me the answeer quickly. as i have a test
Plese sujjest me some good science projects for class 8 for interschool science exhibition? Plese tell appoximately 3 projects.
Solid Sodium Chloride does not conduct electricity while Sodium Chloride solution conducts.explain.
What is the difference between Electro plating,Electro refining and Electro lysis???
WHEN ELECTRIC CURRENT PASSED THROUGH POTATO.....WHY THE POATO BECOMES GREEN???????
is vinegar a good conductor of electricity
Define electrode.
why is the blueish-green colour spot found only on the place were positive terminal?
Vegetable oil is a conductor or what ? In the study material it is given that vegetable oil is a poor conductor but in the NCERT solutions it is given that it is a good conductor ?Please tell me the answer fast becausei have my Science FA - 3 on Monday...........
is milk and honey a good conductor of electricity???
Find out the health concerns associated with chromium electoplating. How are people trying to resolve them?
Q) Differentiate between electrolytes and non-electrolytes. ...give two examples of each and .....describe an experiment to identify them as electrolytes and non-electrolytes??...i don't have ans.. pls help me..
When the current is allowed to pass from a potato, a greenish-blue spot appears on it. The spot appears because of which chemical? Answer me fastt...... experts
Solid Sodium Chloride does not conduct electricity while Sodium Chloride solution conducts.Explain.
Difference between electroplating and electrorefining. (any 5)
how is salt a good conductor of heat ?
Howcome sugar solution is a good conductor of electricity???
How can you electroplate an iron spoonwith copper?? Pls explain
what is electroplating
copper conducts electricity through electrons, whereas salt solution conducts electricity through ions.do you agree.why?
what do you mean by electric circuit?
How does electroplating changes the physical, chemical and mechanised properties of a metal piece?
. To remove temporary hardness of water by Clark method the substance used is -
When we dip salt in pure water then what is the cause of its conduction?
What are the advantages of electroplating ?????????????????????
Please answer this question as soon as possible till 1st November
why greenish-blue spot occur on the potato around the positive electrode?
solid copper sulphate does not conduct electricity , but when it is dissolved in water, it does conduct electricity.why?
difference between volts and watts
How is potato a good conductor of electricity?
During electroplating there are two electrodes
what is "cathode" and "anode"
mercury is a liquid and conducts electricity. Do you think it is an electrolyte?
The purpose of using MnO2 in a dry cell along with powdered carbon is to convert
a) H2 b) O2 c) N2 d) Cl2
how bulb glows when electricity is passed through it.
explain the heating effect of electric current.
why is the green blue patches found only on the positive terminal side of the potato
IS BASES ARE GOOD CONDUCTORS OF ELETRICITY?
will electric current pass through blood......?????
is shampoo solution acidic,basic or neutral?
Why are fuse wires used in the electrical circuits at home? Why are they not used in a circuit containing electric cells?
what are the two methods of testing an insulator or conductor?
how does electroplating takes place?
Explain the process of electroplating...!!!
what are the main applications of electrolysis
find out the health concerns associated with chromium electroplating.How are people trying to resolve them?
solid copper sulphate does not conduct electricity but when it s dissolved in water it does conduct electricity.whyyyyy?
why are carbon electrodes commonly used in electrolytic cells
why is pure water a bad conductor of electricity??
Describe an activity to show electrolysis of water is carried out.
this chapter does not have a test in the first topic.. i have completed the topic..but meritnation shows only 50% is complete. what should i do? this is the second chapter with such a problem
What is ionisation? (7-8 lines)
solid copper sulphate does not conduct electricity, but when it is dissolved in water, it does conduct electricity?
I need 10 uses of electroplating.
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Syllabus
why should you not touch electrical appliances with wet hands
uses and disadvantages of electroplating?
ARE ACIDS GOOD CONDUCTORS OF ELECTRICITY?
Explain the electrolysis of water with the help of a well labelled diagram also write the chemical reaction taking places at the electrodes.
Nichrome is a/an
a) Conductor
b) insulator
c) magnet
d) semiconductor please give me the answer
In the process of electroplating of copper on a metallic spoon, the iron spoon is made the cathode. A thin sheet of pure copper is made the anode. When electricity is passed through the solution, Cu2+ ions move towards the cathode and get reduced to copper metal. This copper metal gets electroplated on the object, i.e., the metalic spoon.
The sulphate ions move towards anode. Here the sulphate ions do not get oxidied. Instead, the copper metal of the anode gets oxidised to Cu2+ ions. These copper ions go into the solution..............
But, why does ths happens? Why does the sulphate ions do not grt oxidised? Instead, why does the copper metal of the anode gets oxidised? Please explain me as fast as possible. I've to give an exam. Hope to get the answer from a MERITNATION EXPERT.
Prepare a list of objects around you that are electroplated?
why acids,bases and salts are good conductors of electricity
why tin can are used to store food instead of iron can
the health concerns associated with chromium electroplating and how are people trying to resolve them
Do honey and milk conduct electricity ?
give three applications of chemical effect of electric current?
a good example of electroplating...
Is alcohol a good conductor of electricity?
I read that milk is a good conductor of heat .What makes it
conduct?
Draw an electrolytic cell and label the following
a) anode
b) cathode and
c) electrolyte
GIVE TEN EXAMPLE OF CATIONS {WHICH CARRY POSITIVE CHARGE] AND ANIONS [CONTAIN NEGATIVE CHARGE]
WHY IS LEMON JUICE A GOOD CONDUCTOR OF ELECTRICITY ?
for what purpose led's are used.
Write a short note on electroplating
Please answer the following questions -
What are the advantages of electroplating iron with chromium?
what happens when electric current is passed through tap water?
plzzz... give me the answeer quickly. as i have a test
Plese sujjest me some good science projects for class 8 for interschool science exhibition? Plese tell appoximately 3 projects.
Solid Sodium Chloride does not conduct electricity while Sodium Chloride solution conducts.explain.
What is the difference between Electro plating,Electro refining and Electro lysis???
WHEN ELECTRIC CURRENT PASSED THROUGH POTATO.....WHY THE POATO BECOMES GREEN???????
is vinegar a good conductor of electricity
Define electrode.
why is the blueish-green colour spot found only on the place were positive terminal?
Q. Four processes are used to charge an isolated metal sphere.
(i) The sphere is earthed by touching it.
(ii) The earth connection is removed from the sphere.
(iii) A charged rod is brought close to the sphere.
(iv) The charged rod is removed.
Vegetable oil is a conductor or what ? In the study material it is given that vegetable oil is a poor conductor but in the NCERT solutions it is given that it is a good conductor ?Please tell me the answer fast becausei have my Science FA - 3 on Monday...........
is milk and honey a good conductor of electricity???
Find out the health concerns associated with chromium electoplating. How are people trying to resolve them?
Q) Differentiate between electrolytes and non-electrolytes. ...give two examples of each and .....describe an experiment to identify them as electrolytes and non-electrolytes??...i don't have ans.. pls help me..
When the current is allowed to pass from a potato, a greenish-blue spot appears on it. The spot appears because of which chemical? Answer me fastt...... experts
Solid Sodium Chloride does not conduct electricity while Sodium Chloride solution conducts.Explain.
Difference between electroplating and electrorefining. (any 5)
how is salt a good conductor of heat ?
Howcome sugar solution is a good conductor of electricity???
How can you electroplate an iron spoonwith copper?? Pls explain
what is electroplating
copper conducts electricity through electrons, whereas salt solution conducts electricity through ions.do you agree.why?
what do you mean by electric circuit?
How does electroplating changes the physical, chemical and mechanised properties of a metal piece?
. To remove temporary hardness of water by Clark method the substance used is -
When we dip salt in pure water then what is the cause of its conduction?
What are the advantages of electroplating ?????????????????????
Please answer this question as soon as possible till 1st November
why greenish-blue spot occur on the potato around the positive electrode?
solid copper sulphate does not conduct electricity , but when it is dissolved in water, it does conduct electricity.why?
difference between volts and watts
How is potato a good conductor of electricity?
During electroplating there are two electrodes
what is "cathode" and "anode"
mercury is a liquid and conducts electricity. Do you think it is an electrolyte?
The purpose of using MnO2 in a dry cell along with powdered carbon is to convert
a) H2 b) O2 c) N2 d) Cl2
how bulb glows when electricity is passed through it.
explain the heating effect of electric current.
why is the green blue patches found only on the positive terminal side of the potato
IS BASES ARE GOOD CONDUCTORS OF ELETRICITY?
will electric current pass through blood......?????
is shampoo solution acidic,basic or neutral?
Why are fuse wires used in the electrical circuits at home? Why are they not used in a circuit containing electric cells?
what are the two methods of testing an insulator or conductor?
how does electroplating takes place?
Explain the process of electroplating...!!!
what are the main applications of electrolysis
find out the health concerns associated with chromium electroplating.How are people trying to resolve them?
solid copper sulphate does not conduct electricity but when it s dissolved in water it does conduct electricity.whyyyyy?
why are carbon electrodes commonly used in electrolytic cells
why is pure water a bad conductor of electricity??
Describe an activity to show electrolysis of water is carried out.
this chapter does not have a test in the first topic.. i have completed the topic..but meritnation shows only 50% is complete. what should i do? this is the second chapter with such a problem
What is ionisation? (7-8 lines)
solid copper sulphate does not conduct electricity, but when it is dissolved in water, it does conduct electricity?
I need 10 uses of electroplating.