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प्रश्न
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
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उत्तर
A sulphide ion carries a negative charge because it contains less number of protons than electrons.
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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
Tick (√) the correct answer.
The sulphate radical is written as S042-. What is the formula of calcium sulphate ?
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 an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
Write symbols of the following elements and the radicals obtained from them and indicate the charge on the radicals.
Mercury, potassium, nitrogen, copper, sulphur, carbon, chlorine, oxygen
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.
Potassium manganate
Differentiate between the following with suitable examples- A basic radical and an acid radical
Fill in the blank:
A radical with one atom of sulphur and three atoms of oxygen are __________.
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.
