Project Assistant 1 Interview Questions and Answers

Phenol group contains one benzene ring.

• Phenol group has one benzene ring attached to a hydroxyl group (-OH).

• The benzene ring in phenol is responsible for its aromatic properties.

• Examples of compounds with phenol group include phenol itself, tyrosine, and salicylic acid.

The main types of coal used in India are lignite, bituminous, and anthracite.

• Lignite is the lowest quality coal with high moisture content and low carbon content.

• Bituminous coal is the most commonly used type in India, with medium carbon content and high calorific value.

• Anthracite is the highest quality coal with low moisture content and high carbon content, but it is less commonly used in India.

• India also imports coking coal for use in steel production.

Coal is a fossil fuel that comes in different types such as anthracite, bituminous, and lignite. It is prepared through mining, crushing, and washing.

• Coal is classified into different types based on its carbon content and energy output

• Anthracite is the highest quality coal with the highest carbon content

• Bituminous coal is the most commonly used type for electricity generation

• Lignite is the lowest quality coal with the lowest carbon content

• Coal is prepared through mining, crus...read more

To prepare a cis structure, one must consider the arrangement of atoms around a double bond.

• Identify the double bond in the molecule

• Ensure that the substituents attached to the double bond are on the same side of the molecule

• Use wedge-and-dash notation to show the spatial arrangement of atoms

• Cis isomer has similar groups on the same side of the double bond

• Example: In cis-2-butene, both methyl groups are on the same side of the double bond