Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Potassium sulphate
Advertisements
उत्तर
Potassium sulphate - K2SO4 - `["SO"_4]^(2-)`
APPEARS IN
संबंधित प्रश्न
Write the chemical formula of the Copper nitrate.
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
An element B shows valencies of 4 and 6. Write the formulae of its two oxides.
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its phosphate ?
Give the empirical formula of Glucose C6H12O6 .
Write the formula of the following compound:
Potassium zincate
Write the formula of the following compound:
Potassium plumbite
Write the formula of the following compound:
Sodium chloride
Write the formula of the following compound:
Calcium nitrate
Write the formula of the following compound:
Magnesium chloride
Write the formula of the following compound:
Iron [II] sulphate
Write the formula of the following compound:
Iron [III] hydroxide
Write the formula of the following compound:
Diamine silver chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
KCr2O7
What do you understand by chemical formula of a compound? What is its significance?
Which of the following represents a correct chemical formula? Name it.
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 |
