Question

what prevents the oxygen rich blood from mixing with the carbon dioxide rich blood?

Answer 1

Answer:

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A septum is a diving wall which is present between the the left side and the right side of the heart, which does not allow mixing of blood when oxygen-rich and carbon dioxide- rich blood reach the heart.

Some points to be noted:

1. Actually, oxygen rich blood and carbon dioxide rich blood don't mix in the heart because they are separated by a wall named septum. ... The aorta takes the blood to the body parts where the cells take in the oxygen and release carbon dioxide. Then the carbon dioxide is taken back to the heart.
2. Your heart is divided into four chambers. These include two on the right, called the right atrium and right ventricle, and two on the left, called the left atrium and left ventricle. The division protects oxygen-rich blood from mixing with oxygen-poor blood.

Answer 2

Explanation:

A benzylic halide is an alkyl halide in whose molecule there are one or more halogen atoms on benzylic carbons.