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:

Which of the following electron configurations represents the electron configuration for a magnesium cation (Mg2+)?

1s²2s²2p⁶3s²

1s²2s²2p⁶3s²3p²

1s²2s²2p⁶

1s²2s²2p⁴

Explanation:

Correct Answer: C

The magnesium cation is isoelectronic with neon, an inert gas and is more stable because of this electron configuration

Question: 3 Test: 6 of 15 Next Test

Tests

You are taking Aptitude Test No. 6

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 3 and Test Number 6 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: Which of the following electron configurations represents the electron configuration for a magnesium .... with options: 1s²2s²2p⁶3s² , 1s²2s²2p⁶3s²3p² , 1s²2s²2p⁶ , 1s²2s²2p⁴ can be solved with the concepts and understanding of Chemistry.