Finding the Odd Word Pair Based on Colour Relationship

The question asks us to identify the pair of words that is different from the other three pairs. Each pair consists of an object or substance and a colour. We need to look at the relationship between the object/substance and the colour in each pair.

Let's examine each pair:

• Sky : Blue: The sky typically appears blue during the day due to the scattering of sunlight in the atmosphere. This is a common observation and a characteristic appearance of the sky.
• Water : Blue: Water itself is naturally colourless and transparent in its pure form. Large bodies of water can appear blue due to various reasons like the absorption of red light, scattering of blue light, or reflection of the blue sky. However, water's inherent colour is not blue.
• Blood : Red: Blood is inherently red due to the presence of haemoglobin in red blood cells. This is the natural and defining colour of blood.
• Milk : White: Milk is inherently white because of the light scattering by proteins and fats suspended in it. This is the natural and defining colour of milk.

Now, let's compare the relationships:

• Sky : Blue - The colour is the typical appearance, though related to atmospheric conditions.
• Water : Blue - The colour is an appearance under certain conditions or in large volumes, not the inherent colour of pure water.
• Blood : Red - The colour is the inherent, defining colour of the substance.
• Milk : White - The colour is the inherent, defining colour of the substance.

We can see a pattern among three of the pairs (Sky: Blue, Blood: Red, Milk: White) where the colour is either the characteristic visual appearance or the inherent colour of the substance. The pair "Water : Blue" is different because the colour blue is not the inherent colour of pure water but rather an appearance due to external factors or volume.

Based on this analysis, the pair "Water : Blue" is the odd one out because the colour blue is not the natural, inherent colour of pure water, unlike red for blood or white for milk.

Identifying the Odd Word Pair

In these types of questions, we look for a common property or relationship shared by three of the items, while one item lacks that property or has a different relationship. Here, the relationship is between an object/substance and its colour.

• Sky is commonly seen as blue.
• Blood is always red.
• Milk is always white.
• Water is naturally colourless but can appear blue.

The distinction lies in whether the colour is an intrinsic property or an apparent property. Red is intrinsic to blood, white is intrinsic to milk. While the sky's blueness is due to light scattering (an external phenomenon), it is the defining visual characteristic. Water appearing blue is also an external phenomenon (light interaction, volume, reflections), but unlike blood or milk, pure water lacks this colour intrinsically.

Therefore, "Water : Blue" stands out as the pair where the colour is not an inherent property of the substance itself.

Conclusion on the Odd Pair Analysis

Comparing the pairs, we find that Sky is typically blue, Blood is inherently red, and Milk is inherently white. Water, however, is inherently colourless and appears blue only under specific circumstances. This makes the relationship in "Water : Blue" different from the others, where the colour is either inherent or a defining characteristic appearance.

Thus, the odd one out is "Water : Blue".

Revision Table: Word Pair Relationships

Additional Information: Odd One Out Reasoning

Odd one out questions test your ability to find patterns and identify deviations. The patterns can be based on various relationships, such as:

• Category membership (e.g., fruits vs. vegetables)
• Properties (e.g., solid vs. liquid)
• Functions (e.g., tools vs. furniture)
• Analogies or relationships (like the colour relationships here)
• Mathematical sequences or properties

To solve these questions, always look for a common link or rule that applies to three items and see which one breaks that rule. Sometimes there might be multiple possible patterns, so consider the most obvious or direct relationship presented in the options.