Chemistry The third shell of an atom can have a maximum of ______ electrons 18 21 15 13 18 21 15 13 ANSWER DOWNLOAD EXAMIANS APP
Chemistry By-product obtained by soap industry is Naphthalene Caustic potash Glycerol Caustic soda Naphthalene Caustic potash Glycerol Caustic soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Sea water Lake water Rain water River water Sea water Lake water Rain water River water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Alum Sodium carbonate Potassium Permangante Lime Alum Sodium carbonate Potassium Permangante ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium phosphate Calcium sulphate Calcium borate Calcium chloride Calcium phosphate Calcium sulphate Calcium borate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: No spin Same spin Same or opposite spin Opposite spin No spin Same spin Same or opposite spin Opposite spin ANSWER DOWNLOAD EXAMIANS APP
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