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प्रश्न
Give example.
Composite radicals
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उत्तर
\[\ce{H3O^+, NH4^+, CO_3^2-, SO4^2-}\]
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संबंधित प्रश्न
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
Define ‘formula mass’ of a compound.
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :
Give example.
Basic radicals
Give example.
Bivalent acidic 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.
Ferrous sulphide
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Magnesium phosphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium thiosulphate
Fill in the blank:
Sodium chloride has two radicals. Sodium is a _____ radical while chloride is _____ radical.
Select the correct answer to the statement given below:
An elementary particle of matter – of a group of atoms of different elements behaving as a single unit with charge on the group.
State if the following element or radical is divalent?
Lithium
State if the following element or radical is divalent?
Ammonium
State if the following element or radical is divalent?
Bromide
State if the following element or radical is divalent?
Chromium
Atoms that carry positive or negative charges are called ______.
