Chemistry When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in Emission spectra Absorption spectra Fluorescence Raman spectra Emission spectra Absorption spectra Fluorescence Raman spectra ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 50 200 500 100 50 200 500 100 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which amidst the following is not a gem stone ? Opal Pearl Cat's-eye Topaz Opal Pearl Cat's-eye Topaz ANSWER DOWNLOAD EXAMIANS APP
Chemistry DDT and BHC may act as Carcinogens Allergens None of these Asthematic agents Carcinogens Allergens None of these Asthematic agents ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of potassium permanganate Electrolysis of water Decomposition of manganese dioxide Fractional distillation of liquid air Decomposition of potassium permanganate Electrolysis of water Decomposition of manganese dioxide Fractional distillation of liquid air ANSWER DOWNLOAD EXAMIANS APP
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