ICSE Class 10 Chemistry 2023 Solved Paper

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Question : 75
Total: 88
Write the empirical formula of C8H18.
Solution:  
Empirical formula of C8H18 is C4H9 .
Empirical formula is the simplest ratio of elements present in the compound. In C8H18 the ratio of C and H is 8:18 , To get simple ratio divide by 2 .
∴ Empirical formula =4:9 .
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