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

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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 oxidizing agent.

टिप्पणी लिखिए

उत्तर

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

An oxidizing agent oxidizes other substances either by accepting electrons or by providing oxygen or an electronegative ion, or by removing hydrogen or an electropositive ion.

\[\ce{Cl2 + 2e- -> 2Cl-}\]

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अध्याय 4: Atomic Structure and Chemical Bonding - Exercise 4 (D) [पृष्ठ ७१]

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सेलिना Concise Chemistry [English] Class 9 ICSE
अध्याय 4 Atomic Structure and Chemical Bonding
Exercise 4 (D) | Q 13.3 | पृष्ठ ७१

संबंधित प्रश्न

How many atoms of each kind are present in the following molecule:

Calcium oxide


How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?


State the following is a reduction reaction or oxidation reaction.

\[\ce{Cu -> Cu^2+}\]


How are X-rays produced?


Give a reason

Physical properties of isotopes are different.


Complete the following table relating to the atomic structure of some elements.

Element Symbol

Atomic

Number

Mass

Number

Numbers of neutrons

Number of Electrons

Number of Protons

Li

3

6

 

 

 

Cl

17

 

20

 

 

Na

 

 

12

 

11

Al

 

27

 

 

13

S

 

32

16

 

 


Compare :

Sodium atom and sodium ion


What do you understand by redox reactions?


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.


\[\ce{^24_12Mg}\] and \[\ce{^26_12Mg}\] are symbols of isotopes of magnesium.

(a) Compare the atoms of these isotopes with respect to :
i. the composition of their nuclei
ii. their electronic configurations

(b) Give reasons why the two isotopes of magnesium have different mass numbers.


State the type of bonding in the following molecules.

Calcium oxide


Identify the following reaction as either oxidation or reduction:

O + 2e- → O2-


Copy and complete the following table relating to the atomic structure of some elements:

Element Atomic Number Mass Number Number of protons Number of Neutrons Number of Electrons
Beryllium 4 9      
Fluorine 9     10  
Sodium       12 11
Aluminium   27     13
Phosphorus   31 15    

Why are Noble gases inert in nature?


______ is the only noble gas that does not have eight electrons in its valence shell.


Write the basic concept of Kossel – Lewis theory.


Complete the following table:

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

How many atoms of each kind are present in the following molecule:

carbon tetrachloride


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