Chemistry Dry powder fire extinguishers contain Sand and potassium carbonate Sand Sand and sodium bicarbonate Sand and sodium carbonate Sand and potassium carbonate Sand Sand and sodium bicarbonate Sand and sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Conversion of water into steam Burning of coal Digestion of food Burning of paper Conversion of water into steam Burning of coal Digestion of food Burning of paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a soluble salt in H2O CaCl2 PbCl2 Zn(OH)2 CuS CaCl2 PbCl2 Zn(OH)2 CuS ANSWER DOWNLOAD EXAMIANS APP
Chemistry Thermal electricity is generated by using which of these ? Coal, Natural Gas and Petroleum Coal and Natural Gas only None of these Coal only Coal, Natural Gas and Petroleum Coal and Natural Gas only None of these Coal only ANSWER DOWNLOAD EXAMIANS APP
Chemistry One carat of diamond is equal to 200 mg 250 mg 150 mg 100 mg 200 mg 250 mg 150 mg 100 mg ANSWER DOWNLOAD EXAMIANS APP
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 Raman spectra Fluorescence Emission spectra Absorption spectra Raman spectra Fluorescence ANSWER DOWNLOAD EXAMIANS APP
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