Some Basic Concepts Of Chemistry Question 288
Question: The percentage of oxygen in $ NaOH $ is [CPMT 1979]
Options:
A) 40
B) 60
C) 8
D) 10
Show Answer
Answer:
Correct Answer: A
Solution:
$ \because $ 40gm NaOH contains 16gm of oxygen
$ \therefore $ 100gm of NaOH contains $ \frac{16}{40}\times 100 $ =40% oxygen.