Chemistry The lustre of the metals is because of High density, due to closed packing of atoms Absorption of light due to the presence of cavities High polish Reflection of light due to the presence of free electrons High density, due to closed packing of atoms Absorption of light due to the presence of cavities High polish Reflection of light due to the presence of free electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 300 km 100 km 150 km 200 km 300 km 100 km 150 km 200 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rectified spirit is : Tincture iodine 100% ethyl alcohol 95% ethyl alcohol Methylated spirit Tincture iodine 100% ethyl alcohol 95% ethyl alcohol Methylated spirit ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iodine value is used to estimate Hydroxyl groups in oil Unsaturation in oil Carboxylic groups in oil Alkali content in oil Hydroxyl groups in oil Unsaturation in oil Carboxylic groups in oil Alkali content in oil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a sublime substance? Potassium Iodide Table salt Sugar Iodine Potassium Iodide Table salt Sugar Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Lead Mercury Arsenic Aluminium Lead Mercury Arsenic Aluminium ANSWER DOWNLOAD EXAMIANS APP
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