Question

With out leaving a ptassium permagnate is placed in a beaker containing water with purple colour spread throughout the water

Answer 1

because the potassium permagnent is in crystalline from and when added to water then crystalline bond breaks and melts living behind purple colour

Answer 2

When we place few crystals of potassium permanganate in a beaker containing water, we get two distinct layers—colourless water at the top and pink colour at the bottom. After few minutes, pink colour spreads and whole solution turns pink due to diffusion.

Since potassium permanganate is a solid substance, it does not possess so much space. Water molecules due to liquid state, collide with solid particles and intermix due to sufficient space between molecules