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प्रश्न
Write the formula of the following compound:
Lead [II] nitrate
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उत्तर
Lead [II] nitrate - Pb[NO3]2 - `"NO"_3^(1-)`
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संबंधित प्रश्न
Write down the formulae of sodium sulphide.
Give the formulae of the compounds formed from the following sets of elements :
- calcium and fluorine
- hydrogen and sulphur
- nitrogen and hydrogen
- carbon and chlorine
- sodium and oxygen
- carbon and oxygen
Give the formula and valency of:
aluminium ………………. .
Give the formula and valency of:
cupric ………………… .
Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.
Give the empirical formula of : Benzene C6H6
Identify the following substance:
A brown gas D with the irritating smell.
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Name the element in the compound and give the formula of the following compound:
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Write the formula of the following compound:
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Write the formula of the following compound:
Calcium sulphate
Write the formula of the following compound:
Magnesium bicarbonate
Write the formula of the following compound:
Zinc hydroxide
Write the formula of the following compound:
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State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
KNO3
Which of the following represents a correct chemical formula? Name it.
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- Ammonia
- Carbon monoxide
- (Hydrogen chloride
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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 |
