Chemistry Mercury is emitted into air by Burning coal Coal fire Steam engine Burning garbage Burning coal Coal fire Steam engine Burning garbage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver halides are used in photographic plates because they are Totally colourless Soluble in hyposolution Oxidised in air Reduced by light Totally colourless Soluble in hyposolution Oxidised in air Reduced by light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum consists of a mixture of Hydrocarbons Carbonates Carbohydrates Carbides Hydrocarbons Carbonates Carbohydrates Carbides ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a Carbonyl group a carbon atom makes double bond with Hydrogen Carbon Oxygen None of these Hydrogen Carbon Oxygen None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water is saltier than rain water because Sea animals are salt producing Sea beds have salt producing mines The air around the sea is saltish Rivers wash away salts from earth and pour them into the sea Sea animals are salt producing Sea beds have salt producing mines The air around the sea is saltish Rivers wash away salts from earth and pour them into the sea ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S ANSWER DOWNLOAD EXAMIANS APP
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