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Chemistry in Our Lives

Md. Saifur Rahman

Chemistry

Chapter - 12: Chemistry in Our Lives

👉 All Chapter Contents 👈

12.1 Domestic Chemistry / Household Chemistry

Write the formula of edible salt?

The formula of edible salt is NaCl.

12.2 Chemistry for Cleanliness

What is soap?

Sodium or potassium salt of higher fatty acid is called soap.

What are the main raw materials for producing soap?

Fat and base are the main raw materials for producing soap.

How many parts are there in a soap?

There are two parts to a soap.

What is the saponification reaction?

The process of making soap by the hydrolysis of oil and fat with caustic soda or caustic potash is called saponification.

What happens in the hydrolysis of oil or fat?

The hydrolysis of oil or fat produces long-chained alcohol and organic acid.

What is detergent?

The sodium salt of long carbon chained alkyl hydrogen sulfate or long carbon chained alkyl benzene sulphonic acid is called detergent.

What is the chemical name of detergent?

The chemical name of the detergent is sodium lauryl sulphonate.

12.3 Chemistry in Agriculture and Industries

Question Bank

12.1 Domestic Chemistry / Household Chemistry

What is the formula of edible salt or table salt?
What is salt harvesting?
Write the uses of sodium chloride.
What is the chemical name of baking soda?
What is baking powder?
Write the preparation of baking soda.
Write the uses of baking soda.

12.2 Chemistry for Cleanliness

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12.3 Chemistry in Agriculture and Industries

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Secondary Chemistry

Chapter - 1 : Concept of Chemistry
Chapter - 2 : States of Matter
Chapter - 3 : Structure of Matter
Chapter - 4 : Periodic Table
Chapter - 5 : Chemical Bond
Chapter - 6 : Concept of Mole and Chemical Counting
Chapter - 7 : Chemical Reactions
Chapter - 8 : Chemistry and Energy
Chapter - 9 : Acid - Base Balance
Chapter - 10 : Mineral Resources: Metal - Nonmetal
Chapter - 11 : Mineral Resources: Fossils
Chapter - 12 : Chemistry in Our Lives

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