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Question

Fill in the blanks by choosing the option with correct words.
The process of rusting is a ________ change. For rusting, both ________ and _________ are required. The salt present in sea water makes the process of rusting __________.

A
Chemical, Air, Water, Faster
B
Physical, Air, Water, Slower
C
Chemical, Air, Water, Slower
D
Physical, Air, Water, Faster
Solution
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Correct option is A. Chemical, Air, Water, Faster

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Similar Questions
Q1
Anamika has arranged the following experimental setup to study the conditions necessary for rusting to take place.


Fill in the blanks by choosing the option with the correct set of words respectively: Both _____ and _____ are essential for rusting. In test tube ______, the iron nail will rust faster. The process of depositing a layer of a metal like zinc on iron to prevent rusting is called _______.
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Q2

State a chemical that facilitates the process of rusting ?

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Q3

A. Fill in the blank spaces by choosing the correct words from the given list.

List : Suphurous, nitric acid, slowly, oxygen, phosphoric

4. Rusting takes place ___________.


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Q4

Rusting of iron is a _________ change while freezing of water is a ____________change.


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Q5
Read the following statements and choose the correct statements.​
1. Tearing of paper is a chemical change.​
2. Dissolution of sugar in water is a physical change.​
3. Evolution of a gas indicates the occurrence of a chemical change.​
4. Evaporation of water is a physical change.​
5. Rusting of iron is a physical change.​


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