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प्रश्न
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
पर्याय
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
उत्तर
Oxygen
APPEARS IN
संबंधित प्रश्न
Define: Elements-
Explain the significance of the symbol H.
Give the symbol of the following element:
Sulphur [sulphide]
State the type of element for the following:
Zinc
State the type of element for the following:
Aluminium
Give the formula of the following gas:
Ammonia
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Mercury
write symbol with the variable valency
Mass of one atom of oxygen is
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
What is the expansion of IUPAC.
