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प्रश्न
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Give one example for the following types of mixtures :
misicible liquids
Define: Molecule
What is meant by H20 and 3H2O
Tick (√) the correct alternative from the choice given for the following statement
A metal which is brittle
Write the names of elements from the following symbol:
Cd
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Differentiate between homogenous & heterogeneous mixtures.
Classify the following as metals, non-metals and metalloids.
Sodium, Bismuth, Silver, Nitrogen, Silicon, Carbon, Chlorine, Iron, Copper
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
Classify the substances given in Fig. 2.2 into elements and compounds
