Advertisements
Advertisements
प्रश्न
Name the element in the compound and give the formula of the following compound:
Ethanol
Advertisements
उत्तर
| Element | Element in compound | Formula |
| Ethanol | Carbon, hydrogen, oxygen | C2H5OH |
APPEARS IN
संबंधित प्रश्न
Write the chemical formula of the Calcium oxide.
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
If the valency of carbon is 4 and that of sulphur is 2, work out the formula of the compound formed by the combination of carbon with sulphur. What is the name of this compound ?
Give the formula and valency of:
| Aluminate | ______ | ______ |
Fill in the blank:
Formula of iron (ill) carbonate is _____ .
Give the empirical formula of Acetylene C2H2
Give the empirical formula of Acitic Acid CH3COOH.
Identify the following substance:
An alkaline gas A which gives dense white fumes with hydrogen chloride.
The formula of the nitride of a metal X is XN, state the formula of :
- its sulphate
- its hydroxide.
Name the element in the compound and give the formula of the following compound:
Carbonic acid
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Name the element in the compound and give the formula of the following compound:
Green vitriol
Write the formula of the following compound:
Zinc carbonate
Write the formula of the following compound:
Tetra amine copper [II] sulphate
Write the formula of the following compound:
Iron [II] chloride
Write the formula of the following compound:
Iron [III] hydroxide
Write the molecular formulae for the following compounds
Copper (II) bromide
Write the steps that are followed to write down the chemical formula of a substance.
Play a game for writing formula.
Example 1: Make placards with symbols and valencies of the elements separately. Each student should hold two placards, one with the symbol in the right hand and the other with the valency in the left hand. Keeping the symbols in place, students should criss-cross their valencies to form the formula of a compound.
