The compound containing both covalent and ionic bond is

The compound that contains both covalent and ionic bonds is Ammonium cyanate (NH4OCN).

Here's a step-by-step explanation:

1. In Ammonium cyanate, the ammonium ion (NH4+) and the cyanate ion (OCN-) are held together by an ionic bond.

2. Within the ammonium ion, the nitrogen (N) and hydrogen (H) atoms are held together by covalent bonds. This is because nitrogen and hydrogen are both non-metals and when non-metals combine, they form covalent bonds.

3. Similarly, within the cyanate ion, the oxygen (O), carbon (C), and nitrogen (N) atoms are held together by covalent bonds. This is because oxygen, carbon, and nitrogen are all non-metals and when non-metals combine, they form covalent bonds.

So, in summary, Ammonium cyanate contains both covalent bonds (within the ammonium and cyanate ions) and an ionic bond (between the ammonium and cyanate ions).