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प्रश्न
How many atoms are present in a PO43− ion?
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उत्तर
In a PO43− ion, five atoms are present; one of phosphorus and four of oxygen.
संबंधित प्रश्न
Write the names of `"NH"_4"OH"` compounds :
Fill in the following blank with suitable word :
The particle which is formed by the gain of electrons by an atom is called ..............
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
What is the difference between a cation and an anion ? Explain with examples.
Explain the formation of (i) sodium ion, and (ii) chloride ion, from their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion ?
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Magnesium phosphate
Complete the following table.
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Acid Radicals `→` |
Chloride |
Nitrate |
Sulphate |
Carbonate |
Hydroxide |
Phosphate |
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Basic Radicals `↓` |
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Magnesium |
MgCl2 |
Mg(NO3)2 |
MgSO4 |
MgCO3 |
Mg(OH)2 |
Mg3(PO4)2 |
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Sodium |
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Zinc |
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Silver |
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Ammonium |
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Calcium |
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Iron (II) |
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Potassium |
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State if the following element or radical is divalent?
Carbide
State if the following element or radical is divalent?
Bisulphite
