Air Liquide Diploma Trainee Engineer Interview Questions and Answers

Written aptitude test was taken. Difficulty level was moderate. Negative marking was there.

Q1. Draw the Oxygen atomic structure
Ans. 
Oxygen has 8 protons, 8 neutrons, and 8 electrons arranged in its atomic structure.
• Oxygen has an atomic number of 8, which means it has 8 protons.

• The atomic mass of Oxygen is approximately 16, so it has 8 neutrons.

• Oxygen has 8 electrons distributed in 2 electron shells, with 2 in the first shell and 6 in the second shell.
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Q2. Tell about specific density?
Ans. 
Specific density is the ratio of the density of a substance to the density of a reference substance.
• Specific density is a dimensionless quantity.

• It is calculated by dividing the density of the substance by the density of the reference substance.

• Common reference substances for specific density include water and air.

• Specific density is used in various fields such as engineering, physics, and chemistry.
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