Question : Which of the following is not a noble gas?
Option 1: Helium
Option 2: Hydrogen
Option 3: Neon
Option 4: Argon
Correct Answer: Hydrogen
Solution : The correct answer is Hydrogen.
Hydrogen is not a noble gas. The symbol of Hydrogen is H and the atomic number is 1. It is the lightest element and at standard conditions, is a gas of diatomic molecules with the formula H2. The seven elements of Group 18 are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn) and oganesson (Og).
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Question : Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
Option 2: Nitrogen
Option 3: Oxygen
Option 4: Hydrogen
Question : Which of the following gases is used in a bulb?
Option 1: Hydrogen
Option 2: Carbon dioxide
Option 3: Carbon monoxide
Question : What is a common name for the substance which irritates lacrimal glands?
Option 1: Tear gas
Option 2: Laughing gas
Option 3: Anaesthetic gas
Option 4: Noble gas
Question : Chlorine gas is a major component of which of the following?
Option 1: Water
Option 2: Tear gas
Option 3: Liquefied petroleum gas
Option 4: Gobar gas
Question : Which of the following is not a natural source of hydrocarbon?
Option 1: Natural gas
Option 2: Coal
Option 3: Petroleum
Option 4: Mica
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