Advertisements
Advertisements
प्रश्न
Write the formulae of the following compounds. Also name the elements present in them.
- Water
- Ammonia
- Methane
- Sulphur dioxide
- Ethanol
Advertisements
उत्तर
| Compound | Formula | Elements present | |
| (a) | Water | H2O | Hydrogen(H) and Oxygen(O) |
| (b) | Ammonia | NH3 | Nitrogen(N) and Hydrogen(H) |
| (c) | Methane | CH4 | Carbon(C) and Hydrogen(H) |
| (d) | Sulphur dioxide | SO2 | Sulphur(S) and Oxygen(O) |
| (e) | Ethanol | C2H5OH | Carbon(C), Hydrogen(H) and Oxygen(O) |
APPEARS IN
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:
CaCO3
Give the name of the element present in the following compound:
Quick lime
Give the name of the element present in the following compound:
Baking powder
Define: Atomic number
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.
Calculate the mass of 3.011 × 1024 atoms of carbon.
Give any two examples for heterodiatomic molecules.
Derive the relationship between Relative molecular mass and Vapour density.
