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Question
Assertion :Polished iron nails do not rust when kept immersed in a test tube containing boil water covered with a layer of oil. Reason: Rust formation can be controlled with coatings such as paint or varnish that isolate the iron from environment. When only temporary protection is needed for storage or transport a thin layer of oil, grease can be applied to an iron surface.
Assertion :Polished iron nails do not rust when kept immersed in a test tube containing boil water covered with a layer of oil. Reason: Rust formation can be controlled with coatings such as paint or varnish that isolate the iron from environment. When only temporary protection is needed for storage or transport a thin layer of oil, grease can be applied to an iron surface.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
When polished iron nail kept immersed in a test tube containing boil water with a layer of oil, it get protected by rust.Rust formation can be controlled with coatings such as paint or varnish that isolate the iron from environment. When only temporary protection is needed for storage or transport a thin layer of oil, grease can be applied to an iron surface.Hence both assertion and reason are correct and reason is the correct explanation for assertion.
When polished iron nail kept immersed in a test tube containing boil water with a layer of oil, it get protected by rust.
Rust formation can be controlled with coatings such as paint or varnish that isolate the iron from environment. When only temporary protection is needed for storage or transport a thin layer of oil, grease can be applied to an iron surface.
Hence both assertion and reason are correct and reason is the correct explanation for assertion.
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