Chemistry Which one of the following elements is used in the manufacture of safety matches? Phosphorus Graphite Sodium Silicon Phosphorus Graphite Sodium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand and potassium carbonate Sand and sodium bicarbonate Sand Sand and sodium carbonate Sand and potassium carbonate Sand and sodium bicarbonate Sand Sand and sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry An alloy used in making heating elements for electric heating device is Alloy Steel Nichrome Solder German Silver Alloy Steel Nichrome Solder German Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Suspension particles have the size between 10–2 – 10–4 cm 10–5 – 10–7cm 10–1 – 10–2 cm 10–8 – 10–10cm 10–2 – 10–4 cm 10–5 – 10–7cm 10–1 – 10–2 cm 10–8 – 10–10cm ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 100 km 150 km 300 km 200 km 100 km 150 km 300 km ANSWER DOWNLOAD EXAMIANS APP
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