Advertisements
Advertisements
प्रश्न
Give example.
Bivalent acidic radicals
Advertisements
उत्तर
S2- ,O2- ,Se2-
APPEARS IN
संबंधित प्रश्न
How many atoms are present in a PO43− ion?
Name the following radicals :
OH
Name the following radicals :
Cr2072
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
Write the names of `"ZnCl"_2 ` compounds :
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
An element X has a valency of 2. Write the simplest formula for oxide of the element.
Explain the formation of (i) sodium ion, and (ii) chloride ion, from their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion ?
What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
Give example.
Trivalent basic radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
Barium sulphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Potassium ferrocyanide
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
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.
Match the radicals in List I with their correct names from List II.
| List I | List II | |
| 1. `"NO"_3^(1-)` | A: Bisulphite | F: Sulphate |
| 2. `"HSO"_4^(1-)` | B: Phosphate | G: Nitrate |
| 3. `"SO"_4^(2-)` | C: Carbonate | H: Phosphite |
| 4. `"PO"_4^(3-)` | D: Nitrite | I: Sulpite |
| 5. `"HCO"_3^(1-)` | E: Bicarbonate | J: Bisulphate |
State if the following element or radical is divalent?
Lithium
State if the following element or radical is divalent?
Nitride
