Chemistry Which one of the following elements is an example of noble gas ? Nitrogen Hydrogen Chlorine Helium Nitrogen Hydrogen Chlorine Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is a noble gas It is lighter than air Its atomic number is 2 It is one of the constitutents of water It is a noble gas It is lighter than air Its atomic number is 2 It is one of the constitutents of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry At room temperature, the metal that remains liquid is: Platinum Mercury Zinc Lead Platinum Mercury Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Silver Copper Zinc Aluminium Silver Copper Zinc Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is very reactive and kept in kerosene? Iodine Bromine Sodium Potassium Iodine Bromine Sodium Potassium ANSWER DOWNLOAD EXAMIANS APP
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