Advertisements
Advertisements
प्रश्न
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidation.
Advertisements
उत्तर
\[\ce{2K + Cl2 → 2KCl}\]
In the electronic concept, oxidation is a process in which an atom or ion loses an electron(s).
\[\ce{K → K+ + e-}\]
संबंधित प्रश्न
Explain the following briefly:
Helium does not form He2 molecule
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 question based on the table above:
What is the formula of the compound formed between W and X.
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
How many electrons are required by each atom mentioned in (a) to attain the nearest noble gas configuration?
How many atoms of each kind are present in the following molecule:
Calcium oxide
State the following is a reduction reaction or oxidation reaction.
\[\ce{Pb -> Pb^2+ + 2e-}\]
State the following is a reduction reaction or oxidation reaction.
\[\ce{Cu -> Cu^2+}\]
State one observation which shows that atom is not indivisible.
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reducing agent.
Give the orbital diagram of the following:
Hydrogen chloride
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
The valency of noble gases is ______.
Choose the odd one out and write the reason:
What is meant by a chemical bond?
Complete the following table:
| Atoms | Atomic number | Electron distribution | |
| 1. | O | 8 | ______ |
| 2. | N | ______ | ______ |
| 3. | ______ | 17 | ______ |
| 4. | ______ | ______ | 2,8,2 |
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
