Chemistry Sour taste of lemon is due to the presence of which of the following ? Citric acid Oxalic acid Acetic acid Formic acid Citric acid Oxalic acid Acetic acid Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Protons Neutrons Neutrons and protons Electrons Protons Neutrons Neutrons and protons Electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? The oxygen content of water is isolated by petrol and thus it helps in burning The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water Water, being heavy, slips below petrol which thus remains in contact with air and burns ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Refrigerant 'FREON' is Calcium Tetra Fluoride Hydrofluosilicic Acid Fluorspar and Felspar Difluoro Dichloro Methane Calcium Tetra Fluoride Hydrofluosilicic Acid Fluorspar and Felspar Difluoro Dichloro Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial fruit ripening of green fruit is Ethane Acetylene Methane Ethylene Ethane Acetylene Methane Ethylene ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS