English

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. - Chemistry

Advertisements
Advertisements

Question

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.

Short Note

Solution

\[\ce{2K + Cl2 → 2KCl}\]

In the electronic concept, oxidation is a process in which an atom or ion loses an electron(s).

\[\ce{K → K+ + e-}\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Atomic Structure and Chemical Bonding - Exercise 4 (D) [Page 71]

APPEARS IN

Selina Concise Chemistry [English] Class 9 ICSE
Chapter 4 Atomic Structure and Chemical Bonding
Exercise 4 (D) | Q 13.1 | Page 71

RELATED QUESTIONS

Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?


In term of electron transfer, define

Reduction


Explain the following briefly:
Helium does not form He2  molecule


Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.


Match the column A with Column B.

Column A

Column B

(i) Sodium chloride

(ii) Ammonium ion

(iii) Carbon tetrachloride

Covalent bond

Ionic bond

Covalent and coordinate

bond


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.

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


Name an element which does not contain neutron.


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.


Why do they exist as monoatoms in molecules?


Five atoms are labeled A to E

Atoms

Mass No

Atomic No.

A

40

20

B

19

9

C

7

3

D

16

8

E

14

7

(a) Which one of these atoms:

(i) contains 7 protons
(ii) has electronic configuration 2,7

(b) Write down the formula in the compound formed between C and D

(c) Predict : (i) metals (ii) non-metals 


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 reduction.


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.


Give the orbital diagram of the following:

Hydrogen chloride


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×