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Organic Chemistry

Sawhorse Projection

It is a way of visualizing the carbon atoms of an open-chain organic molecule from an oblique angle and projecting that image on a 2-dimensional paper to appear like a carpenter’s sawhorse. 

The two adjacent carbons of interest in a chain are drawn as a slant line, and its two groups form the hind and forelegs, with the third forming the head and the tail to resemble a horse from which the name draws an inspiration.

 

What are Radical inhibitors and their role in a reaction?

A radical reaction usually happens in three steps- Initiation (creation of free radicals), Propagation (multiplication and growth of radical reaction), and Termination (stopping of the free radical reaction).

Radical inhibitors are chemical species that inhibit radical reactions by halting the chain propagation step.

Examples of such inhibitors are Hydroquinone, BHT (2,6-di-t-butyl-4-methylphenol), etc.

Which side of an unsymmetrical alkene does the reagent attack and why?

Alkenes are double bonds containing molecules. These double bonds are called pie bonds and are made up of two electrons. Due to the presence of the pie electron cloud, alkenes are electron-rich species and interact with electron-deficient species, the electrophiles. The reaction between alkenes and the electrophiles is an addition reaction.

Heteroatomic molecules

When atoms of different types combine to form molecules, it is a heteroatomic molecule. For example, when Carbon (C) and Oxygen (O) atoms combine under an appropriate reaction condition, it can lead to the formation of two types of products (carbon monoxide, CO, and carbon dioxide, CO2) containing two types of atoms.

A heteroatomic molecule can be diatomic (like hydrogen chloride, HCl), triatomic (like water, H2O), or polyatomic (like methane, CH4). 

Crystalline Versus Amorphous Solids- Anisotropy and Isotropy

Anisotropy and Isotropy

Amorphous solids are said to be isotropic, and crystalline solids are anisotropic for their physical property measurements.

Isotropy comes from the Greek word; iso means same and tropos means direction. The name rightly indicates that for the amorphous solids; the physical property measurements are same in all the directions. The same correlation applies for anisotropy that means no same direction. It means that for the crystalline solids, the physical property measurements are not same in all the directions.