How will you account for 104.5 degree bong angle in water?Describe the structure of common form of ice.
1) In water molecule, there are 2 lone pairs on oxygen atom, which results in repulsion between bonding and lone pairs and water has a bent shape with bond angle 104.5 degrees.
Water
2) Ice is the crystalline form of water. It takes a hexagonal form if crystallized at atmospheric pressure , but condenses to cubic form if the temperature is very low.
The three-dimensional structure of ice is represented as:
The structure is highly ordered and has hydrogen bonding. Each oxygen atom is surrounded tetrahedrally by four other oxygen atom s at a distance of 276 pm. The structure also contains wide holes that can hold molecules of appropriate sizes interstitially.