Assertion (A): Lithium and beryllium unlike their other respective group members form compounds with pronounced ionic character. Reason (R): Lithium and Magnesium have similar properties due to diagonal relationship. [2023]

STUDY MATERIALS
COURSES
MORE
SUCCESS STORY
ADMISSION
STORE

Back

JEE ADVANCE

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

JEE MAIN

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

NEET

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

BITSAT

CLASS XI - XII

CLASS XI - XII

CBSE BOARD

CLASS IX

CLASS X

CLASS XI

CLASS XII

CLASS VI

CLASS VII

CLASS VIII

UP BOARD

CLASS IX
CLASS X
CLASS XI
CLASS XII

CLASS IX

CLASS X

CLASS XI

CLASS XII

CUET

CRASH COURSE

CRASH COURSE

Courses

CLASSROOM COURSES
ONLINE COURSES

ONLINE COURSES

Q.
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). [2023]

Assertion (A): Lithium and beryllium unlike their other respective group members form compounds with pronounced ionic character.

Reason (R): Lithium and Magnesium have similar properties due to diagonal relationship.

In the light of the above statements, choose the correct answer from the options given below:

1 (A) is true but (R) is false.

2 (A) is false but (R) is true.

3 Both (A) and (R) are true and (R) is the correct explanation of (A).

4 Both (A) and (R) are true but (R) is not the correct explanation of (A).

Ans.
(2)

Li and Be forms predominantly covalent compounds due to small size and high charge density. The similarity in properties between lithium and magnesium arises due to diagonal relationship.

Solution

1 (A) is true but (R) is false.

2 (A) is false but (R) is true.

3 Both (A) and (R) are true and (R) is the correct explanation of (A).

4 Both (A) and (R) are true but (R) is not the correct explanation of (A).

Ans.
(2)

Li and Be forms predominantly covalent compounds due to small size and high charge density. The similarity in properties between lithium and magnesium arises due to diagonal relationship.

Want Us to Email you About Special Offers & Updates?

Solution

1 (A) is true but (R) is false.

2 (A) is false but (R) is true.

3 Both (A) and (R) are true and (R) is the correct explanation of (A).

4 Both (A) and (R) are true but (R) is not the correct explanation of (A).

Ans. (2) Li and Be forms predominantly covalent compounds due to small size and high charge density. The similarity in properties between lithium and magnesium arises due to diagonal relationship.

Want Us to Email you About Special Offers & Updates?

Ans.
(2)

Li and Be forms predominantly covalent compounds due to small size and high charge density. The similarity in properties between lithium and magnesium arises due to diagonal relationship.