Chemistry The tip of the match-stick contains Red phosphorus White phosphorus Phosphorus pentoxide Phosphorus trichloride Red phosphorus White phosphorus Phosphorus pentoxide Phosphorus trichloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of lemon is due to the presence of which of the following ? Acetic acid Formic acid Oxalic acid Citric acid Acetic acid Formic acid Oxalic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The natural resource, known as black gold is Lead Platinum Tin Coal Lead Platinum Tin Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Tritium Carbon-14 Phosphorus-31 Radium Tritium Carbon-14 Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Lake water River water Rain water Sea water Lake water River water Rain water Sea water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound that has the least value for octane number is : 2-methyl heptane Iso-octane N-heptane 2,2-dimethyl hexane 2-methyl heptane Iso-octane N-heptane 2,2-dimethyl hexane ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS