Consider the following statements about electroplating: I. Electroplating is the coating of metal objects with a thin layer of a different metal. II. Electroplating makes objects look more attractive and protects them from corrosion and rusting. III. Electroplating forms and envelops around the object to protect them from magnetism. Which of the above statements is true ?
Only statement I
Only statement II
Statements I and II
Statements II and III
All of the above statements
A
Only statement II
B
Only statement I
C
Statements I and II
D
Statements II and III
E
All of the above statements
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Solution
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Electroplating does not form an envelops that may isolate it from magnetic force.
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Q1
Consider the following statements about electroplating: I. Electroplating is the coating of metal objects with a thin layer of a different metal. II. Electroplating makes objects look more attractive and protects them from corrosion and rusting. III. Electroplating forms and envelops around the object to protect them from magnetism. Which of the above statements is true ?
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Q2
Statement I: In electroplating, a superior metal is coated with an inferior metal.
Statement II: When iron is coated with zinc metal, iron becomes more resistant to corrosion.
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Q3
Electroplating is a very useful process widely used in industry for coating metal objects with a thin layer of :
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Q4
To protect iron from corrosion and rusting , it is electroplated with
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Q5
Question 5
A man painted his main gate made up of iron, to
(i) prevent it from rusting. (ii) protect it from the sun. (iii) make it look beautiful. (iv) make it dust free.
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