Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Neon Nitrogen Sodium Hydrogen Neon Nitrogen Sodium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Stratosphere Exosphere Troposphere Ionosphere Stratosphere Exosphere Troposphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Magnesium Sodium Silicon Calcium Magnesium Sodium Silicon Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Muddy water is treated with alum in purification process, itis termed as : Adsorption Absorption Coagulation Emulsification Adsorption Absorption Coagulation Emulsification ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 50 138 88 314 50 138 88 314 ANSWER DOWNLOAD EXAMIANS APP
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