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प्रश्न
Write the names of ZnS compounds :
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उत्तर
ZnS - Zinc sulphide
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संबंधित प्रश्न
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
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.
Give example.
Composite radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic oxide
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic phosphate
Fill in the blank:
Sodium chloride has two radicals. Sodium is a _____ radical while chloride is _____ radical.
Name the following radicals and give their valencies:
1. SO4
2. CO3
3. OH4.
4.Cr2O7
State if the following element or radical is divalent?
Chromium
State if the following element or radical is divalent?
Permanganate
