Advertisements
Advertisements
प्रश्न
Give the empirical formula of Acitic Acid CH3COOH.
Advertisements
उत्तर
The empirical formula for acetic acid is CH2O.
APPEARS IN
संबंधित प्रश्न
Write the chemical formula of the Calcium oxide.
Fill the following blanks with suitable words :
In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................
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:
aluminium ………………. .
Correct the following statement:
A molecular formula represents an element.
XCl2 is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Write the formula of the following compound:
Sodium sulphite
Write the formula of the following compound:
Sodium permanganate
Write the formula of the following compound:
Sodium bisulphite
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Zinc carbonate
Write the formula of the following compound:
Iron [III] sulphate
Write the formula of the following compound:
Iron [II] sulphide
Write the formula of the following compound:
Lead [II] chloride
Write the formula of the following compound:
Silver [I] chloride
Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.
| Across | Down | ||
| 2 | The element used by Rutherford during his α–scattering experiment | 1 | A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air |
| 3 | An element which forms rust on exposure to moist air | 4 | Both brass and bronze are alloys of the element |
| 5 | A very reactive non–metal stored under water | 6 | The metal which exists in the liquid state at room temperature |
| 6 | Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. | 8 | An element with symbol Pb |

There are ______ hydrogen atoms in water molecule.
Derive the chemical formula for calcium chloride.
