Multiple choice general knowledge science & technology

What is the original color of water?

  1. Colourless

  2. Blue

  3. Bluish Green

  4. Green

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A Correct answer
Explanation

Pure water in small quantities is colorless and transparent. While large bodies of water can appear blue due to light scattering and absorption, water itself has no inherent color. The 'blue' appearance of oceans and lakes is an optical effect, not the actual color of water molecules.

AI explanation

Pure water is colourless; the blue tint seen in oceans, lakes, or deep water comes from light scattering and absorption effects (and reflected sky color), not from water itself having color. In small quantities, such as a glass of water, no color is visible at all. This is why chemistry treats water as a colourless liquid in its pure form.