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प्रश्न
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उत्तर
Potassium sulphite - K2SO3 - `"K"^1["SO"_3]^(2-)`
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संबंधित प्रश्न
Write the chemical formula of the Calcium carbonate.
The radius of an oxygen atom is 0.073 nm. What does the symbol ‘nm’ represent ?
An element X has a valency of 4 whereas another element Y has a valency of 1. What will be the formula of the compound formed between X and Y ?
Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.
Correct the following statement:
A molecular formula represents an element.
Give the empirical formula of : Benzene C6H6
Write the formula of the following compound:
Potassium nitrite
Write the formula of the following compound:
Sodium nitrate
Write the formula of the following compound:
Sodium sulphite
Write the formula of the following compound:
Sodium dichromate
Write the formula of the following compound:
Sodium hydroxide
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Iron [III] hydroxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
Ca2(PO4)3
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
Which of the following represents a correct chemical formula? Name it.
BiPO4
Write the molecular formulae for the following compounds
Mercury (II) 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.
