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 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: Zinc Lead Platinum Mercury Zinc Lead Platinum Mercury 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 Aluminium Copper Zinc Silver Aluminium Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is very reactive and kept in kerosene? Potassium Bromine Sodium Iodine Potassium Bromine Sodium Iodine ANSWER DOWNLOAD EXAMIANS APP
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