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प्रश्न
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उत्तर
Potassium chloride - KCl - K1+Cl1-
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संबंधित प्रश्न
What do the symbols, H2, S and O4 mean in the formula H2SO4 ?
Write down the formulae for the following compounds :
Magnesium hydroxide
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Give the formula and valency of:
chromate ………….…….. .
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Give the empirical formula of : Benzene C6H6
Give the empirical formula of Acetylene C2H2
Give the empirical formula of Acitic Acid CH3COOH.
Name the element in the compound and give the formula of the following compound:
Nitric acid
Name the element in the compound and give the formula of the following compound:
Ethanol
Write the formula of the following compound:
Potassium plumbite
Write the formula of the following compound:
Sodium aluminate
Write the formula of the following compound:
Calcium bisulphite
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Copper [II] nitrate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
What do you understand by chemical formula of a compound? What is its significance?
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 is ______ oxygen atom is water molecule.
