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Question
Which of the following metals can be cut with a knife?
Which of the following metals can be cut with a knife?
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Solution
The correct option is D Lithium
Metals are usually very hard but alkali metals (lithium, sodium, potassium) are so soft that they can be cut with a knife. This is because they have very low densities.
Lithium
Metals are usually very hard but alkali metals (lithium, sodium, potassium) are so soft that they can be cut with a knife. This is because they have very low densities.
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