MEDIUM
9th Foundation
IMPORTANT
Earn 100

Observe the schematic atomic structures of three elements and :
Which of the following statements are correct?
I. can form and .
Il. exists in monatomic form.
Ill. and combine to form type of compound.
IV. and combine to form type of compound.
V. will gain two electrons to form a stable compound.

Il. exists in monatomic form.
Ill. and combine to form type of compound.
IV. and combine to form type of compound.
V. will gain two electrons to form a stable compound.
(a)Ill, IV and V only
(b)I and Il only
(c)I, II and IV only
(d)Il, IV and V only

53.13% studentsanswered this correctly

Important Questions on SOF National Science Olympiad
EASY
9th Foundation
IMPORTANT
Two different fields and were treated with two different substances to increase crop yield. Amount of humus in their respective fields was observed for a period of time as shown in the given graph.
Select the incorrect statement regarding substances applied in both fields and .

EASY
9th Foundation
IMPORTANT
Identify in the given flow chart and select the correct statement regarding them.
