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Chapter 5 Acids, Bases and Salts

  • Substance are categorized into three- acid, base, salt.
  • Substance having sour taste called as acidic.
  • Substance having bitter taste called as basic.
  • Substance which are neither acidic nor basic called as neutral.
  • Indicators are the substances which shows that the substances are acidic or basic in nature.
  • There are some natural indicators like turmeric, litmus, China rose etc.
  • Litmus changes into blue, when it dissolve in base.
  • When an acid is mixed with base, then it is called neutralization reaction.
  • Salt pH is 7, which is neutral.
  • Neutralization help in our daily life like in acidity ant bite etc.

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Exercise 1 ( Page No. : 57 )

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