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Theory:

An acid is a substance that has more H+ ions concentration.
Types of acid:
 
1. Based on the source of origin, the acid is classified as
  • Organic acid
  • Mineral acid
Organic acid:
  
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Organic acids are acids that are derived from plants and animals.
Example:
Citric acid, Latic acid, Malic acid, Tannic acid
Mineral acid:
 
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Mineral acids are acids that are derived from an inorganic substance or source.
Example:
Nitric acid, Hydrochloric acid, Sulphuric acid
2. Depending on the quantity of water present in acids, it is classified as
 
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  • Concentrated acids
  • Diluted acids
Concentrated acids:
  
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The concentration of acid is more compared to that of water. These are pure acids.
 
Diluted acids:
  
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Dilute acids are acids that contain high quantity of water than concentrated acids. They're made by diluting a concentrated acid with water.
Note: In strong acids there is a complete dissociation of  H+ ions, and in weak acids there is a partial dissociation of H+ ions in an aqueous solution.
 
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Nitric acid, sulphuric acid and hydrochloric acids are some of the strong acids, whereas citric acids, lactic acids are weak acids.
Properties of acids:
 
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  • The acids taste sour.
  • Acids are water-soluble.
  • Acids turn blue litmus into red.
  • Due to their corrosive nature, acids corrode metals such as aluminium and iron. As a result, these are stored in glass containers rather than metal containers.
Acids and bases
Reference:
https://www.shutterstock.com/image-photo/cute-panda-bear-climbing-tree-1214297323
https://www.shutterstock.com/image-photo/park-shrubs-green-lawns-landscape-design-329291891
https://www.shutterstock.com/image-photo/fresh-herbs-pots-on-balcony-garden-55604686
https://www.shutterstock.com/image-photo/cat-dog-sleeping-together-kitten-puppy-1479239243
https://www.shutterstock.com/image-photo/leopard-portrait-110146619
https://www.shutterstock.com/image-photo/job-applicant-having-interview-business-people-502885909
https://www.shutterstock.com/image-photo/vitamin-c-effervescent-tablet-dissolving-glass-675238645
https://www.shutterstock.com/image-vector/cartoon-illustration-yellow-sour-lemon-facial-1499570993
https://www.shutterstock.com/image-illustration/blue-litmus-paper-dipped-into-acidic-1815046304
https://www.shutterstock.com/image-photo/bottles-solutions-stored-on-shelf-laboratory-754680508
https://www.shutterstock.com/image-vector/strong-weak-acids-bases-partial-dissociation-1936974409