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