Question

What are bases? What are their physical properties?

Answer 1

Bases are substances that have a soapy feel and bitter taste. Bases help in neutralizing the acidity by forming salt and water.
Like acids, bases can also be strong and weak. Sodium hydroxide and potassium hydroxide are strong bases which can burn our skin; but magnesium hydroxide and copper hydroxides are weak bases, and safe to handle even in their concentrated state.

Some of the properties of bases are listed below:
1. Most of the bases are metal hydroxides.
2. They are bitter in taste.
3. They are soapy in touch.
4. They turn red litmus blue.
5. Their reaction with acids gives salt and water.