Discussion
Assertion (A): Two clays with identical chemical analyses can behave quite differently in a body.
Reason (R): The same oxides can be combined into different minerals with different properties.
Answer: D
Both are true and the reason gives the cause: an oxide analysis is blind to mineralogy, so kaolinite and a mixture of gibbsite with quartz might report the same figures while behaving nothing alike in forming or firing.
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