Question : Which one of the following elements is an example of noble gas?
Option 1: Nitrogen
Option 2: Hydrogen
Option 3: Chlorine
Option 4: Helium
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Correct Answer: Helium
Solution : The correct option is Helium.
Nobel gases are generally inert. Despite this, these gases are also odourless and colourless. Several noble gases form a group in the Periodic table. Helium is a noble gas.
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Question : Which of the following is not a noble gas?
Option 1: Hydrogen
Option 2: Helium
Option 3: Neon
Option 4: Argon
Question : Which one of the following elements is associated with teeth disorder?
Option 1: Chlorine
Option 2: Fluorine
Option 3: Bromine
Option 4: Iodine
Question : Which of the following elements has an atomic number greater than that of fluorine?
Option 1: Sodium
Option 2: Beryllium
Option 3: Nitrogen
Option 4: Boron
Question : Which gas is the major component of biogas?
Option 1: Compressed natural gas
Option 2: Methane
Option 3: Hydrogen
Option 4: Liquefied petroleum gas
Question : In October 2022, which of the following substances was mapped in abundance for the first time by Chandrayaan-2 on the moon?
Option 2: Chlorine
Option 3: Oxygen
Option 4: Sodium
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