Question

1. Aluminium is diagonally related to [ ]

a) Li b) Si c) Be d) B

2. Reactivity of elements depends on [ ]

a) EA b) EP c) IP d) None

3. Choose the incorrect statement. [ ]

a) Caesium is highly reactive metal b) Polarising power = ionic charge/(ionic radius)2

c) Fluorine is highly reactive non-metal d) Carbon diagonally related with phosphorus

4. Silicon diagonally related to [ ]

a) Li b) Al c) Be d) B

5. Which period elements have diagonal relationship [ ]

a) 1, 2 b) 2, 3 c) 3, 4 d) 4, 5

6. Chemical similarity between B and Al is due to [ ]

a) Similar outermost electronic configuration b) Diagonal relationship

c) both belongs to same period d) both b and c

7. In a group top of the bottom electropositivity. [ ]

a) decreases b) increases c) both a and b d) can’t predict

8. Among all the groups which group elements are highly reactive metals. [ ]

a) IIA b) VIA c) IA d) VIIIA

9. Among all the groups which group elements are highly reactive non-metals. [ ]

a) IA b) VIIIA c) VA d) VIA

10. Electropositivity means [ ]

a) the tendency of an element to lose it electrons with difficulty

b) the tendency of an element to gain electrons very easily

c) the tendency of an element to lose its electrons easily

d) all the above​

Answer 1

Answer:

(1) 2nd period elements ( li, be, b) shows diagonal relationship with 3rd period elements (mg, al, si ) because of same ionic potential value they show similarity in properties.

SO, BE is answer

Answer 2

Answer:

aluminium is diagonally related to berrilium