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