Chemistry Cement is usually a mixture of : Lime stone and silicon dioxide Calcium silicate and calcium ferrate Calcium silicate and calcium aluminate Calcium aluminate and calcium ferrate Lime stone and silicon dioxide Calcium silicate and calcium ferrate Calcium silicate and calcium aluminate Calcium aluminate and calcium ferrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 5 and 10 km 10 and 20 km 50 and 100 km 20 and 50 km 5 and 10 km 10 and 20 km 50 and 100 km 20 and 50 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to recover copper from a solution of copper sulphate is Fe Ag Na Hg Fe Ag Na Hg ANSWER DOWNLOAD EXAMIANS APP
Chemistry When formaldehyde and potassium hydroxide are heated, we get Methyl alcohol Ethyl formate Methane Acetylene Methyl alcohol Ethyl formate Methane Acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry A solution is A homogeneous mixture of two or more substances A solid dissolved i water A solid dissolved in a liquid A mixture of two liquids A homogeneous mixture of two or more substances A solid dissolved i water A solid dissolved in a liquid A mixture of two liquids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Nitrogen Hydrogen Air Helium Nitrogen Hydrogen Air Helium ANSWER DOWNLOAD EXAMIANS APP
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