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प्रश्न
Write down the name of a compound represented by the following formula:
CaCl2
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उत्तर
Calcium chloride
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संबंधित प्रश्न
Give the name of the element present in the following compound:
Hydrogen bromide
Give the name of the element present in the following compound:
Baking powder
State the term.
The number of atoms present in a molecule of an element _________
Define: Atomic number
Define: Atomic weight :
Write the formulae of the following compounds. Also name the elements present in them.
- Water
- Ammonia
- Methane
- Sulphur dioxide
- Ethanol
What do the following denote ?
- N
- 2N
- N2
- 2N2
An element X forms the following compounds with hydrogen, carbon and oxygen :
H2X, CX2, XO2, XO3
State the three valencies of element X which are illustrated by these compounds.
Give one example of a triatomic molecule
Which of the following contains maximum number of molecules?
