Chemistry What is the element required for solar energy conversion ? Tantalum Ultra pure carbon Silicon Beryllium Tantalum Ultra pure carbon Silicon Beryllium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Zinc Copper Aluminium Silver Zinc Copper Aluminium Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Hydrogen Air Methane Carbon monoxide Hydrogen Air Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater has a pH level of 8.3 5.6 3.2 6.3 8.3 5.6 3.2 6.3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Oxyzen Hydrogen Carbon Nitrozen Oxyzen Hydrogen Carbon Nitrozen ANSWER DOWNLOAD EXAMIANS APP
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