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प्रश्न
Give Two Examples for Each of the Following: Inert Gases
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उत्तर
Helium, argon, neon.
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संबंधित प्रश्न
Choose the most appropriate answer
A solvent of Iodine is
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Name: A form of carbon used as a gem
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Find the atomicity of the Following molecule:
Carbon Monoxide
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Complete the statement with the correct words.
__________ are chemicals formed on reaction of a base with an _____ giving salt and water.
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
Reason out
Elements are called semimetals.
