Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Pure water Salt water Starch water Sweet water Pure water Salt water Starch water Sweet water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a cause for present global warming and climate change ? Deforstation Carbondioxide emission CFC emission Methane emission Deforstation Carbondioxide emission CFC emission Methane emission ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead pencil contains Lead Ferrous sulphide Graphite Lead sulphide Lead Ferrous sulphide Graphite Lead sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Physical change Electrical change Electrochemical change None of these Physical change Electrical change Electrochemical change None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air ANSWER DOWNLOAD EXAMIANS APP
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