Question

Which of the following is a divalent compound radical ?

Nitrate
Oxide
Carbonate
Ammonium

Answer 1

$\fcolorbox{red}{aqu}{Answer:}$

OXIDE.....♥

Answer 2

To find:

Divalent radicle among the given options.

• Nitrate
• Oxide
• Carbonate
• Ammonium

Solution:

Among the given radicals carbonate is a divalent radical.

Now , lets see the structure:

$\boxed{ \bf{carbonate = {CO_{3}}^{-2} }}$

Cabonate radical can combined with many other elements to produce ionic compounds such as:

• Sodium carbonate (Na2CO3)

• Calcium carbonate (CaCO3)

• Zinc Carbonate (ZnCO3)

Other options are eliminated because:

• Ammonium radical is uni-positive , hence univalent (NH4+).

• Nitrate radical is uni-negative , hence univalent (NO3-).

• Oxide is an ion , but not a radical.

Hope It Helps.