Advertisements
Advertisements
प्रश्न
In the formation of magnesium chloride (by direct combination between magnesium and chlorine), name the substance that is oxidized and the substance that is reduced.
Advertisements
उत्तर
Magnesium is oxidised and chlorine is reduced.
APPEARS IN
संबंधित प्रश्न
Define a chemical bond.
State differences between the properties of ionic compounds and covalent compounds.
What type of bond is formed between two atoms, when the electronegative difference between them is low ?
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
Answer the following questions based on the table above:
What is the formula of the compound formed between X and Z.
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
State the type of bonding in the following molecules.
Calcium oxide
Five atoms are labelled V to Z
| Atoms | Mass Number | Atomic Number |
| V | 40 | 20 |
| W | 19 | 9 |
| X | 7 | 3 |
| Y | 16 | 8 |
| Z | 14 | 7 |
- Which one of these atoms
(1) contains 7 protons;
(2) has an electronic configuration 2, 7? - Write down the formula of the compound formed by atoms X and Y.
Number of valence electrons in carbon is ______.
