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प्रश्न
Give a reason why –
Ozone is considered triatomic, but phosphorus a tetratomic molecule.
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उत्तर
Ozone is considered triatomic because it is composed of three atoms while phosphorous is composed of four elements therefore it considered as tetratomic molecule.
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संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
Al2(SO4)3
Write down the name of a compound represented by the following formula:
CaCl2
Write down the name of a compound represented by the following formula:
KNO3
Write down the name of a compound represented by the following formula:
CaCO3
Define: Atomic number
Define: Mass number :
Define: Atomic weight :
What is meant by atomicity ? Explain with two examples.
Work out the formula for magnesium hydrogencarbonate.
What are (i) ionic compounds, and (ii) molecular compounds ? Give two examples of each type of compounds.
An element A forms an oxide A2O5.
What is the valency of element A ?
Why are the symbols and formulae of substances important?
Explain the term – molecules. Give three examples of atoms of the same element forming a molecule. State the atomicity of the same.
Give one example of a polyatomic molecule.
Give a reason why –
Helium is considered monoatomic, but hydrogen a diatomic molecule.
State the atomicity of the following:
Oxygen
Which of the following is a short and scientific way of representing one molecule of an element or compound?
Classify the following molecules as the molecules of element or compound
| 1. |  |
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| 2. |  |
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| 3. |  |
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| 4. |  |
Two elements sometimes can form more than one compound.
Define: Atomicity.
Give any two examples for heterodiatomic molecules.
Derive the relationship between Relative molecular mass and Vapour density.
Which of the following contains maximum number of molecules?
Write any two classifications of a molecule.
