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Aptitude Test Topic: General Knowledge

General Knowledge Section consists of MCQs on World Geography, Atmosphere, Science and Literature, events, Current Affairs, Pakistan Affairs, and International Organizations.

Directions

The following are questions on Your General Knowledge. 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.

General Knowledge: General Knowledge Practice MCQ

Question Statement:

Who introduced the electron pair bond?

Irving Langmuir

John Dalton

G.N. Lewis

Neil Bohr

Explanation:

Correct Answer: C

In 1916, G. N. Lewis introduced the electron pair bond.

In chemistry, an electron pair or a Lewis pair consists of two electrons that occupy the same orbital but have opposite spins.

He proposed that two atoms may share from one to six electrons forming single, double or triple bonds.

He introduced the cubical atom and six postulates to understand their chemical behaviour.

That chemical bond decides the properties of molecules such as colour, reactivity, solubility, etc. all of which decide their applications.

Question: 1 Test: 168 of 169 Next Test

Tests

You are taking Aptitude Test No. 168

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 1 and Test Number 168 of General Knowledge: General Knowledge. To deal with General Knowledge 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: Who introduced the electron pair bond? .... with options: Irving Langmuir, John Dalton, G.N. Lewis, Neil Bohr can be solved with the concepts and understanding of General Knowledge.