Some Basic Concepts Of Chemistry Question 305
Question: Which one of the following pairs of gases contains the same number of molecules [EAMCET 1987]
Options:
A) 16 g of $ O _2 $ and 14 g of $ N _2 $
B) 8 g of $ O _2 $ and 22 g of $ CO _2 $
C) 28 g of $ N _2 $ and 22 g of $ CO _2 $
D) 32 g of $ O _2 $ and 32 g of $ N _2 $
Show Answer
Answer:
Correct Answer: A
Solution:
16g $ O _2 $ has no. of moles $ =\frac{16}{32}=\frac{1}{2} $
14g $ N _2 $ has no. of moles $ =\frac{14}{28}=\frac{1}{2} $
No. of moles are same, so no. of molecules are same.
