Important questions of chemistry class 12 pdf download || NEB ||

Important questions of chemistry for class 12 

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Here,in this post you will gets the notes of "important reactions chemistry question" which is very important for class 12 NEB board exam. Which is useful for revision.

Types of Naming Reactions:

Naming reactions are a critical component of organic chemistry and play a vital role in the synthesis of organic compounds. There are many types of naming reactions, but some of the most important ones include:

1. Addition Reactions: These reactions involve the addition of one molecule to another. For example, in the addition of hydrogen to an alkene, a double bond is broken, and the hydrogen atoms are added across the carbon-carbon double bond to form an alkane.

2. Elimination Reactions: These reactions involve the removal of a molecule from another. For example, in the elimination of water from an alcohol, a hydrogen ion is removed from the alcohol molecule to form an alkene.

3. Substitution Reactions: These reactions involve the replacement of one functional group with another. For example, in the substitution of a halogen atom with a hydroxyl group in an alkyl halide, the halogen atom is replaced by a hydroxyl group to form an alcohol.

4. Rearrangement Reactions: These reactions involve the rearrangement of atoms within a molecule. For example, in the rearrangement of a methyl group from one carbon atom to another in a carbocation, a carbon-carbon bond is broken, and a new bond is formed.

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What happenes to the reactants when a chemical reaction takes place..??? 

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