Which option gives a correct general match of percentage and gas?
Answer and explanation
Correct answer: Nitrogen about seventy-eight percent
The governing concept is the approximate composition of dry air near Earth’s surface: nitrogen is about 78%, oxygen about 21%, argon about 0.93%, and carbon dioxide about 0.04% (values can vary slightly). Therefore option A gives the correct general match. Option B assigns the carbon-dioxide percentage to oxygen, C assigns oxygen’s percentage to argon, and D assigns nitrogen’s percentage to carbon dioxide.
Frequently asked questions
What is the correct answer to this question?
Nitrogen about seventy-eight percent
Why is this the correct answer?
The governing concept is the approximate composition of dry air near Earth’s surface: nitrogen is about 78%, oxygen about 21%, argon about 0.93%, and carbon dioxide about 0.04% (values can vary slightly). Therefore option A gives the correct general match. Option B assigns the carbon-dioxide percentage to oxygen, C assigns oxygen’s percentage to argon, and D assigns nitrogen’s percentage to carbon dioxide.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Trial Balance and Rectification of Errors. Topic: Preparing trial balance and correcting errors.
