NEET Chemistry Percentage Composition Assertion Reason Question
Assertion (A): The percentage composition of elements in a compound is used to check the purity of a given sample.
Reason (R): The percentage composition calculation depends on the mass of each element and the molar mass of the compound.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
The NCERT context explains that percentage composition provides a check on the purity of a sample by comparing the percentage of elements in the given sample to a pure sample. This calculation requires the mass of each element and the molar mass of the compound.
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