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Question

একটি মোটরযানের জ্বালানির অকটেন নাম্বার 80 বলতে বুঝায়-

A mixture of 80% n-Hexane & 20% iso-Octane

A mixture of 20% n-Hexane & 80% iso-Octane

A mixture of 20% n-Pentane & 80% iso-Octane

None

ANS : 2

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