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Class 10 Science Medium Mcq English Medium

Metals such as potassium and sodium react so vigorously with oxygen that they

Question
Metals such as potassium and sodium react so vigorously with oxygen that they
Never react at all
Can catch fire if kept in the open
Turn into liquids immediately
Become completely non-reactive
Answer
Can catch fire if kept in the open
Detailed Explanation
Potassium and sodium react so vigorously with atmospheric oxygen that they can catch fire if left exposed.
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