Directions How to Answer

Aptitude Test Topic: Chemistry

Chemistry test evaluate test taker's in-depth understanding of the subject.

Directions

The following are questions of Chemistry. Select the correct option to represent your answer.

To give the answer click/tap the option alphabet for your answer choice. for correct answer green check and for wrong answer a red cross will appear along with a button to show explanation with or without video of the question answer.

Chemistry: All Topics Practice MCQ

Question Statement:

The gas used to inflate the tyres of an aircraft is-

Hydrogen

Nitrogen

Helium

Neon

Explanation:

Correct Answer: B

Sol. Nitrogen gas is used in the types of an aeroplane. This is because the nitrogen gas does not support combustion and can assist in preventing wheel fire when the aircraft lands (braking and high speed can produce dangerously high temperatures) unlike in oxygen. There are other benefits but effectively it is being the lowest cost gas that does not support combustion. It is preferred in comparison with the oxygen because nitrogen does not contain water. Thus, when the plane is at more height, gas in tyres does not get frozen.

Question: 6 Test: 14 of 15 Next Test

Tests

You are taking Aptitude Test No. 14

Each aptitude test is comprised of 10 except the last test which might have fewer than 10 in some topics.

You are at question (MCQ) number 6 and Test Number 14 of Chemistry: All topics. To deal with Chemistry questions, you must take lesson on the subject. In case of science and Art subjects revise your text books and in case of general aptitude topics take lessons from the topic page.

The question: The gas used to inflate the tyres of an aircraft is- .... with options: Hydrogen , Nitrogen, Helium, Neon can be solved with the concepts and understanding of Chemistry.