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