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प्रश्न
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.
विकल्प
Molecule
Orbits
Atom
Valency
Radical
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उत्तर
Radical
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संबंधित प्रश्न
Calculate the number of aluminium ions present in 0.051 g of aluminium oxide.
(Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27 u)
Name the following radicals :
HC03
Write the names of ZnS compounds :
Tick (√) the correct answer.
The sulphate radical is written as S042-. What is the formula of calcium sulphate ?
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
The valencies (or charges) of some of the ions are given below :
Ion Valency Ion Valency (Charge) (Charge)
Sodium ion 1+ Nitrate ion 1–
Copper ion 2+ Sulphide ion 2–
Using this information, write down the formulae of :
- Sodium sulphide
- Copper nitrate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Magnesium phosphate
Name the following:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Carbide
State if the following element or radical is divalent?
Dichromate
