Tips for Class 12 chemistry ncert solutions

Working through class 12 chemistry ncert solutions can be challenging. But by following these tips, you'll get the answers you need.

1. We can derive the equations of a reaction if we know the reactants and products.

If you know the reactants and products of a chemical reaction, it is possible to derive the equation of that reaction. The reactants are the starting materials of a chemical reaction, while its products are formed as a result of this process.

Reaction equations are balanced in such a way that they show how much of each element is present in them respectively. They are written in such a way that:

 Each element appears only once on either side of an arrow;

 All elements involved in their standard form (elements) appear on one side only;

 Equations should be written with subscripts if there are more than one type of atom within them

2. If an element or compound is being oxidized during a reaction, it gains electrons

 If an element or compound is being oxidized during a reaction, it gains electrons; if it is being reduced in a reaction, it loses electrons.

The oxidation number of an atom in a molecule gives its charge on that molecule. The oxidation number of an atom can be determined by adding up all the charges on all the other atoms present in that molecule and subtracting this total from 16 (which represents the total number of electrons). For example:

Nitrogen has an oxidation number of 5 because there are 3 nitrogen atoms contributing +3 charges each (for N2) plus 1 hydrogen atom contributing no charge at all.

3. A catalyst speeds up or controls reactions.

In this section, we will study catalysts. A catalyst is a substance that speeds up or controls a chemical reaction but does not change into something else during the process.

Catalysts can be used to speed up reactions, or they can be used to control them.

The most common type of catalyst is called an activator-deactivator because it acts as an activator at high temperatures and as a deactivator at low temperatures. In other words, it's able to switch between two forms depending on temperature; these forms are called states A (activated) and B (inactive).

4. Nitric acid is a strong acid.

 Nitric acid is a strong acid because it dissociates completely in water(HNO3+H2O) which gives acidic hydrogen ions and nitrate ions - both strong acids.

The nitrate ion has a charge of +5, while the hydronium ion (H3O+) has a charge of +1. Since these two compounds have opposite charges, they are called "polyprotic" because they can both donate and accept protons.

Use these tips to help you get through chemistry

Chemistry is a subject that requires a lot of practice. It can be fun and it's important in everyday life, so there's no reason to be afraid of it!

You might be thinking: "How do I get through chemistry?" Well, we have some tips for you.

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