Get Answers to all your Questions

header-bg qa

Q.7.(i)     Chalk contains calcium, carbon and oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk.
 

Answers (1)

best_answer

We have,
The ratio of calcium, carbon and oxygen in the chalk = 10 : 3: 12
Now, Sum of the ratio = 10 + 3 + 12 = 25

Therefore, the percentage of carbon in the chalk
\Rightarrow \frac{3}{25}\times 100 =12\%

Posted by

manish

View full answer