Chemistry Normal rainwater is slightly acidic due to the presence of Carbon dioxide None of these Methane Sulphur dioxide Carbon dioxide None of these Methane Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercially, sodium bicarbonate is known as Washing soda Baking soda Soda ash Bleaching powder Washing soda Baking soda Soda ash Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar made by fermentation from cane sugar contains Palmitic acid Citric acid Lactic acid Acetic acid Palmitic acid Citric acid Lactic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 18 Zero 6 12 18 Zero 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Generator Power transmittor Uninterrupted power supply (UPS) Battery Generator Power transmittor Uninterrupted power supply (UPS) Battery ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
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