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प्रश्न
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
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उत्तर
False. A sodium ion carries a positive charge because it has less number of electrons than a neutral atom.
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संबंधित प्रश्न
Write the names of ZnS compounds :
Write the names of `"H"_2"S"` compounds :
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
An element X has a valency of 2. Write the simplest formula for oxide of the element.
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
Give example.
Basic radicals
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:
A radical with one atom of sulphur and three atoms of oxygen are __________.
Name the following:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Bromide
