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प्रश्न
Give example.
Bivalent acidic radicals
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उत्तर
S2- ,O2- ,Se2-
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संबंधित प्रश्न
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
Name the following radicals :
Cr2072
Write the names of `"CuCo"_3` compounds :
Write the names of `"HgO"` compounds :
Define ‘formula mass’ of a compound.
Fill in the following blank with suitable word:
The particle which is formed by the loss 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.....................
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
Give example.
Trivalent basic radicals
What do you understand by the following terms?
Acid radical
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Potassium ferrocyanide
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic phosphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Potassium manganate
Fill in the blank:
Sodium chloride has two radicals. Sodium is a _____ radical while chloride is _____ radical.
State if the following element or radical is divalent?
Lithium
State if the following element or radical is divalent?
Bromide
State if the following element or radical is divalent?
Sulphite
State if the following element or radical is divalent?
Carbide
State if the following element or radical is divalent?
Permanganate
