Some Basic Concepts Of Chemistry Question 42

Question: A mixture of $ NH _4NO{ _3} $ and $ {{(NH _4)}_2}HPO _4 $ contain 30.40% mass per cent of nitrogen. What is the mass ratio of the two components in the mixture?

Options:

A) 2 : 1

B) 1 : 2

C) 3 : 4

D) 4 : 1

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Let w.t. of $ NH _4NO _3 $ and $ {{( NH _4 )}_2}HPO _4 $ are x and y gram respectively $ \frac{\frac{x}{80}\times 2\times 14+\frac{y}{132}\times 2\times 14}{x+y}\times 100=30.4 $
$ \Rightarrow x:y=2:1 $



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक