Chemistry A fertile soil is likely to have a pH of 3 43989 9 14 3 43989 9 14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium phosphide Hydrogenated wafers Hydrogen sulphide Aluminium sulphide Aluminium phosphide Hydrogenated wafers Hydrogen sulphide Aluminium sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two elements which can form a large number of compounds are Carbon and Hydrogen Carbon and Sulphur Carbon and Nitrogen Carbon and Oxygen Carbon and Hydrogen Carbon and Sulphur Carbon and Nitrogen Carbon and Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Magnesium, tin and iron Calcium, magnesium and iron Magnesium, calcium and tin Iron, tin and calcium Magnesium, tin and iron Calcium, magnesium and iron Magnesium, calcium and tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane ozone helium oxygen methane ozone helium oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Limestone and graphite Chalk and graphite Limestone and clay Clay and graphite Limestone and graphite Chalk and graphite Limestone and clay Clay and graphite ANSWER DOWNLOAD EXAMIANS APP
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