Description : The two elements that exist as liquids at 25°C are (a) Mercury and lithium (b) Mercury and caesium (c) Bromine and mercury (d) Mercury and argon
Last Answer : Ans:(c)
Description : Name five elements and five compounds those exist as gases at room temperature.
Last Answer : Name five elements and five compounds those exist as gases at room temperature.
Description : Elements that exist in two or more distinctly different solid forms are known as: w) azeotropes x) allotropes y) isotopes z) isochores
Last Answer : ANSWER: X -- ALLOTROPES