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प्रश्न
Carbon black is a nanostructured material that is used in tyres of car ____________.
विकल्प
to increase the weight of tyre
to impart various colours
to increase the life of tyre
to increase the friction
MCQ
रिक्त स्थान भरें
उत्तर
Carbon black is a nanostructured material that is used in tyres of car to increase the life of tyre.
shaalaa.com
History of Nanotechnology
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