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प्रश्न
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उत्तर
Potassium bisulphate - KHSO4 - `"K"^1["HSO"_4]^(1-)`
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संबंधित प्रश्न
The radius of an oxygen atom is 0.073 nm. What does the symbol ‘nm’ represent ?
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 ?
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 ?
An element A forms an oxide A2O5.
What will be the formula of chloride of A ?
Give the formula and valency of:
cupric ………………… .
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:
Acetic acid
Write the formula of the following compound:
Potassium plumbite
Write the formula of the following compound:
Sodium nitrate
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium bisulphate
Write the formula of the following compound:
Magnesium bicarbonate
Write the formula of the following compound:
Magnesium 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.
NaCO3
Write the molecular formulae for the following compounds
Aluminium (III) nitrate
Write the molecular formulae for the following compounds
Calcium (II) phosphate
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 |
