CHAPTER NO 10 ACIDS, BASES, AND SALTS | Chemistry 10

CHAPTER NO 10 ACIDS, BASES, AND SALTS | Chemistry 10

Q.1: What is the origin of Acid? Give examples of acids, bases, and salts substances in our daily life?

Ans: Origin of Acid: The term acid is derived from the Latin word “Acidus” which means sour. So acids are those substances having a sour taste. Read more: Notes

Some important acids in our daily life: Many important acidic substances which we use in our daily life are as under:

  1. Acetic Acid: It is found in vinegar.
  2. Lactic Acid: It is found in fermented milk.
  3. Malic Acid: It is found in the apple.
  4. Citric Acid: It is found in citrus fruits like lemon, orange, grapes, etc.
  5. Hydrochloric Acid: It is found in our stomach which helps in the digestion of food.
  6. Formic Acid: It is in the sting of ants and bees.

Some important bases and salts in our daily life: There are many bases and salts which we use in our daily life. For example:

  • Washing Soda (Na2CO3 10H2O

It is salt and is used for washing purposes.

  • Baking Soda NaHCO3

It is also a salt and is used for baking cakes and other confectionaries.

  • Sodium Hydroxide (NaOH):

It is also called caustic soda which is used for the preparation of soap.

  • Magnesium Hydroxide (Mg(OH )2)

It is used as an antacid

Q.2: Compare the physical properties of acids and bases?Ans: Comparison between physical properties of acids and bases:  It is given in the table given below:

chemistry notes

CHAPTER NO 10 ACIDS, BASES, AND SALTS | Chemistry 10

Q.1: What is the origin of Acid? Give examples of acids, bases, and salts substances in our daily life?Ans: Origin of Acid:The term acid is derived from the Latin word “Acidus” which means sour. So acids are those substances having a sour taste.Read more: NotesSome important acids in our daily life: Many important acidic substances which we use in our daily life are as under:

  1. Acetic Acid: It is found in vinegar.
  2. Lactic Acid: It is found in fermented milk.
  3. Malic Acid: It is found in the apple.
  4. Citric Acid: It is found in citrus fruits like lemon, orange, grapes, etc.
  5. Hydrochloric Acid: It is found in our stomach which helps in the digestion of food.
  6. Formic Acid: It is in the sting of ants and bees.

Some important bases and salts in our daily life: There are many bases and salts which we use in our daily life. For example:

  • Washing Soda (Na2CO3 10H2O

It is salt and is used for washing purposes.

  • Baking Soda NaHCO3

It is also a salt and is used for baking cakes and other confectionaries.

  • Sodium Hydroxide (NaOH):

It is also called caustic soda which is used for the preparation of soap.

  • Magnesium Hydroxide (Mg(OH )2)

It is used as an antacid

Q.2: Compare the physical properties of acids and bases?Ans: Comparison between physical properties of acids and bases:  It is given in the table given below:

notes

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