Chemistry Chemical name of common salt is Sodium Oxide Sodium Sodium Chloride Sodium Bicarbonate Sodium Oxide Sodium Sodium Chloride Sodium Bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Limestone is a raw material used by which industry? Petrochemicals Cement Fertilizers Aluminium Petrochemicals Cement Fertilizers Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of Cobalt in Vitamin B12 was established for the first time by Borax-Bead test Hydrolysis test Spectroscopy Sodium Nitroprusside test Borax-Bead test Hydrolysis test Spectroscopy Sodium Nitroprusside test ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Phenolphthalein Alizarin Crystal violet Aniline blue Phenolphthalein Alizarin Crystal violet Aniline blue ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer CO2 layer O 2 layer SO2 layer O3 layer CO2 layer O 2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
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