Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 2 : 16 : 1 2 : 16 : 2 1 : 16 : 2 1 : 1 : 1 2 : 16 : 1 2 : 16 : 2 1 : 16 : 2 1 : 1 : 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Magnesium sulphate Potassium chloride Calcium carbonate Sodium chloride Magnesium sulphate Potassium chloride Calcium carbonate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Light metals Noble gases Halogens Heavy metals Light metals Noble gases Halogens ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Sodium Phosphorus Graphite Silicon Sodium Phosphorus Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Insecticides Leaded gasoline Tobacco Sewage Insecticides Leaded gasoline Tobacco Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: All radiations of Light Cosmic rays. Infra-red rays Ultraviolet rays All radiations of Light Cosmic rays. Infra-red rays Ultraviolet rays ANSWER DOWNLOAD EXAMIANS APP
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