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Answer : 1. "Sodium"
Which metal can be cut with a knife among sodium, lithium, calcium and nickel?
5Q:
Which metal can be cut with a knife among sodium, lithium, calcium and nickel?
- 1Sodiumtrue
- 2Lithiumfalse
- 3calciumfalse
- 4allfalse
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Answer : 1. "Sodium"
Explanation :
Alkali metals (lithium, sodium, potassium) are so soft that they can be cut with a knife. The freshly cut surface is a shiny, silver colour, but this tarnishes quickly to a dull grey as the metal reacts with oxygen and water in the air.