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CBSE 9th Science | Matter-Nature and its Behaviour Questions for Examination
Matter-Nature and its Behaviour Questions for Examination Question 1. How many elements are in gaseous state at room temperature? Answer. 11 elements are in gaseous state at room temperature. Question 2. Name two elements which are in liquid state at room temperature? Answer. Mercury, Bromine. Question 3. What is the state of elements gallium and…