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Neutralization Reaction – Class 7 Science

Quiz

Played 49 %Accuracy 67 Average time 00:-1

About this activity

A neutralization reaction is a chemical reaction in which an acid reacts with a base to form salt and water. During this reaction, the acidic and basic properties cancel each other, making the solution neutral.
General Equation:
Acid + Base → Salt + Water
Example:
Hydrochloric Acid (HCl) + Sodium Hydroxide (NaOH) → Sodium Chloride (NaCl) + Water (H₂O)
Everyday Uses of Neutralization:
Indigestion: Antacids neutralize excess acid in the stomach.
Ant Sting: Baking soda can be applied to neutralize the acid injected by ants.
Soil Treatment: Farmers add lime to acidic soil to improve crop growth.
Factory Waste: Neutralization helps treat acidic or basic industrial waste before disposal.

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Neutralization Reaction – Class 7 Science
 

Neutralization Reaction – Class 7 ScienceOnline version

A neutralization reaction is a chemical reaction in which an acid reacts with a base to form salt and water. During this reaction, the acidic and basic properties cancel each other, making the solution neutral. General Equation: Acid + Base → Salt + Water Example: Hydrochloric Acid (HCl) + Sodium Hydroxide (NaOH) → Sodium Chloride (NaCl) + Water (H₂O) Everyday Uses of Neutralization: Indigestion: Antacids neutralize excess acid in the stomach. Ant Sting: Baking soda can be applied to neutralize the acid injected by ants. Soil Treatment: Farmers add lime to acidic soil to improve crop growth. Factory Waste: Neutralization helps treat acidic or basic industrial waste before disposal.

by Meenakshi Sharma
1

Aarav was stung by a bee. His friend applied a baking soda paste on the sting. Why did this help?

2

A farmer found soil became acidic from nearby factory waste. Which of these should be added to the soil to make it less acidic?

3

A student tested a liquid with blue litmus paper. The paper turned red. What does this tell you about the liquid?

4

Red litmus paper turns blue when dipped into a soap solution. What conclusion is best?

5

A student used litmus paper but saw no colour change. Which is the most complete explanation for why this might happen?

6

Why can frequent consumption of soft drinks damage tooth enamel?

7

Aloe vera is commonly applied on sunburn because it:

8

Read the observation: Observation with Red Litmus Turns blue Substance:Soap solution What conclusion can be drawn?

9

Which pair of substances will most likely neutralize each other when mixed?

10

A student rinses their mouth with water after drinking soda. How does this help protect tooth enamel?

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