Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 –4 Zero 4 8 –4 Zero 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Sodium, Magnesium Calcium, Magnesium Sodium, Potassium Sodium, Calcium Sodium, Magnesium Calcium, Magnesium Sodium, Potassium Sodium, Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Carbon Graphite Lead Mica Carbon Graphite Lead Mica ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical properties of isotopes Must be same Need not be different Need not be same Must be different Must be same Need not be different Need not be same Must be different ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is an antidiabatic drug? Aspirin Chloroquine Penicillin Insulin Aspirin Chloroquine Penicillin Insulin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Nitrogen Methane Helium Hydrogen Nitrogen Methane Helium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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