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Science: one of the army of our country

⚔️🔬 Science 🔬⚔️         The importance of science is well known today. Science is not just limited branch, it is very wide branch and extend study of the basics of science makes a new branch of science. For example, Biology is branch in which the study of living being occurred,  Chemistry the study of chemical, Microbiology the study of microorganisms, cell biology the study of all types of cell....etc....etc. But science does not seem to be as important as it should be. Now people understand that there is no alternative without science. Every one know that the science is a great career field, this is also a good education field, that's all there is to it. Still, we can say that ' Science is the one of the army of our country '. What is this nonsense....... How is that........ So let to prove this sentence, with evidence.... At first I would like to say that, we can't imagine the world without Science, because Science has given us so much
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Acid and Base.

 * Acid and Base *

Acid and Base are the concept of chemistry but in every day like it is important. 
For example, after getting of more amount of lunch or dinner we says , 'enough, excess amount of food, produce acidity'.
Some time stomach produce Gas at that time we get lemon drink, some time we get soda. This is common every day life use of acid and base.
But the machanism behind this, stomach produce more amount of digestive liquid this liquid is acidic, for minimize this we get antacid or soda like basic component.

What is acid?                              What is base ?
And chemistry behind this let's start with acid.

Acid and base: concept of chemistry

*Acid

The word acid is derived from Latin word acidus. Acidus means Sour. The general taste of Acid is Sour.

Acid definition ÷ 

The substance which produces  H+ ion in aqueuse
Solution is called as Acid .

Properties of acid ÷

  1. Acids are liquid. 
  2. Taste of acid is Sour.
  3. The aqueuse Solution of acid conduct electricity.
  4. Acid Reacts with metals to produce Metal Oxides.
  5. In acid blue litums turns to Red.
  6. pH scale measured the pH+ concentration of Acid.

Examples of acids ÷

Hydrochloric acid (HCL), Citric acid , Hydrofluoric acid (HF).......etc

pH scale of acid ÷ 

Is Less than 7


  • If pH of solution is in between 1to 6 then solution is Weak acidic.
  • If pH of solution is 0 and  1 then solution is Strong acidic.

*Base 

Definition ÷ 

The substance which produces  OH- (Hydroxid) ion in aqueuse solution is called as Base.

Properties of base ÷

  1. Taste of Base is bitter.
  2. Base are conductor of electricity.
  3. In base red litmus turns to Blue.
  4. Base mixed with acid they lose their basicity.
  5. pH scale measured the pOH- concentration of base.

Example of base ÷

Sodium Hydroxide (NaOH), Calcium Hydroxide ,.......etc

pH scale of base ÷

Is Greater than 7.


  • If the pH of solution is in between 8 to 13 then the solution is weak base.
  • If the pH of solution is 13 and 14 then the solution is strong base.


pH scale

*Neutralisation ÷


The acid reacts with base then salt and water products are formed.
This acid base reaction is known as Neutralisation reaction.

acid + base ---> salt + water
E.g.
HCl + NaOH ---> NaCl +H2O










Science world


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