हिंदी

Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reduction. - Chemistry

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 reduction.

टिप्पणी लिखिए

उत्तर

\[\ce{2K + Cl2 -> 2KCl}\]

In the electronic concept, a reduction is a process in which an atom or ion accepts electron(s).
\[\ce{Cl2 + 2e--> 2Cl-}\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Atomic Structure and Chemical Bonding - Exercise 4 (D) [पृष्ठ ७१]

APPEARS IN

सेलिना Concise Chemistry [English] Class 9 ICSE
अध्याय 4 Atomic Structure and Chemical Bonding
Exercise 4 (D) | Q 13.2 | पृष्ठ ७१

संबंधित प्रश्न

Match the atomic number 4, 8, 14, 15 and 19 with each of the following:
(a) A solid non-metal of valelncy 3.
(b) A gas of valency 2.
(c) A metal of valency 1.
(d) A non-metal of valency 4


Give electron dot diagram of the following:
Magnesium chloride


State the type of bonding in the following molecule.
Calcium oxide


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?


What do you understand by redox reactions? Explain oxidation and reduction in terms of loss or gain of electrons.


What is an α (alpha) particle?


What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.


Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:

  1. A solid non-metal of valency 3.
  2. A gas of valency 2.
  3. A metal of valency 1.
  4. A non-metal of valency 4. 

Name the following:

An element having valency 'zero'


How do atoms attain noble gas configurations?


Compare :

Sodium atom and sodium ion


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.


Complete the table give below.

Element

Atomic number

Electron distribution Valence electrons Lewis dot structure
Lithium 3 1s22s1    
Boron 5 1s22s22p1    
Oxygen 8 1s22s22p4    

The valency of noble gases is ______.


Spot the error/correct the wrong statement:

In the formation of compounds, the inner shell electrons of an atom involved in bonding.


Match the following:

1. Monoatomic gaseous atom a. Electrovalent bond
2. Octet rule b. Benzene
3. Ionic bond c. Water
4. Non-polar solvent d. Electronic theory of valence
5. Polar solvent e. Noble gases

Choose the odd one out and write the reason:


What is a chemical bond?


Write the basic concept of Kossel – Lewis theory.


Complete the following table:

a. Dativebond ______
b. CaH2 → Ca+H2 ______
c. ______ Reduction
d. ______ Redox reaction

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×