/6 Science Quiz (for 12 to 16 years old): Quiz 1 1 / 6Which of the following metals forms an amalgam with other metals? Tin Lead Zinc Mercury 2 / 6Chlorophyll is a naturally occurring chelate compound in which central metal is magnesium copper iron calcium 3 / 6Brass gets discoloured in air because of the presence of which of the following gases in air? Oxygen Carbon dioxide Hydrogen sulphide Nitrogen 4 / 6Chemical formula for water is H2O CaSiO3 Al2O3 NaAlO2 5 / 6Which of the following is a non metal that remains liquid at room temperature? Phosphorous Helium Bromine Chlorine 6 / 6Which of the following is used in pencils? Silicon Charcoal Graphite Phosphorous Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin
