Chemistry Hardest allotrope of carbon is Lamp black Coke Graphite Diamond Lamp black Coke Graphite Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a major green house gas? Carbon dioxide Carbon monoxide Chloro fluorocarbon Freon Carbon dioxide Carbon monoxide Chloro fluorocarbon Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Laughing gas is Nitrogen trioxide Nitrous oxide Nitrogen pentoxide Nitric oxide Nitrogen trioxide Nitrous oxide Nitrogen pentoxide Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 C and d B and c A and b A and c C and d B and c A and b A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Three bonds One bond Two bonds Four bonds Three bonds One bond Two bonds Four bonds ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of High polish Absorption of light due to the presence of cavities Reflection of light due to the presence of free electrons High density, due to closed packing of atoms High polish Absorption of light due to the presence of cavities Reflection of light due to the presence of free electrons High density, due to closed packing of atoms ANSWER DOWNLOAD EXAMIANS APP
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