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Question
Graphite is used as a lubricant in machines because ______.
Options
it is a good conductor of electricity
it is made of slippery layers and has a high melting point
it has a high density
it is strong and soft
MCQ
Fill in the Blanks
Solution
Graphite is used as a lubricant in machines because it is made of slippery layers and has a high melting point.
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