Chemistry The element absorbed both in cation and anion form is Phosphorus Calcium Nitrogen Sulphur Phosphorus Calcium Nitrogen Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Pyrolusite Magnetite Siderite Galena Pyrolusite Magnetite Siderite Galena ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Sodium, Potassium Sodium, Magnesium Calcium, Magnesium Sodium, Calcium Sodium, Potassium Sodium, Magnesium Calcium, Magnesium Sodium, Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most pure form of Carbon among the options is Anthracite Graphite Lampblack Wood Charcoal Anthracite Graphite Lampblack Wood Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ruby and sapphire are oxides of Tin Iron Aluminium Copper Tin Iron Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
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