Identify the elements with the following property and arrange them in – InterviewSolution

1.	Identify the elements with the following property and arrange them in increasing order of their reactivity.(a) An element which is a soft and reactive metal.(b) The metal which is an important constituent of limestone.(c) The metal which exists in liquid state at room temperature.
Answer» (a) Na or K (b) Ca (c) Hg Reactivity order: Hg < Ca < Na < K

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