Chemistry Detergents used for cleaning clothes and utensils contain Bismuthates Nitrates Sulphonates Bicarbonates Bismuthates Nitrates Sulphonates Bicarbonates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Red phosphorus Violet phosphorus White phosphorus Black phosphorus Red phosphorus Violet phosphorus White phosphorus Black phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry When ice cubes are made, the entropy of water Increases May either increase or decrease depending on the process used Decreases Does not change Increases May either increase or decrease depending on the process used Decreases Does not change ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 100 years 0.01 minute 3 billion years 13 days 100 years 0.01 minute 3 billion years 13 days ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Hydrogen peroxide Borax Saltpetre Sodium chloride Hydrogen peroxide Borax Saltpetre Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 4 –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 –3 to + 6 –3 to + 5 –3 to + 3 ANSWER DOWNLOAD EXAMIANS APP
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