Classification Questions

• Classification – Natural vs synthetic fibres: identify the odd one out. Three are natural fibres; one is synthetic (man-made). Which option is different? Options: Cotton, Nylon, Silk, Linen.
• Classification – Natural substances vs man-made machine: choose the odd one out. Three are naturally occurring materials or living things; one is a manufactured machine. Which option does not belong? Options: Wood, Stone, Tree, Engine.
• Classification – Multiples of 12: pick the odd one out. Three numbers are exact multiples of 12; one is not divisible by 12. Which number is different? Options: 52, 96, 24, 36.
• Classification – Stationery vs non-stationery: identify the odd one out. Three items are common stationery tools; one is a toy (not a stationery article). Which option is different? Options: Pencil, Toy, Pen, Scale.
• Classification – Chemical elements: choose the odd one out. Three are well-known radioactive elements; one is a common alkali metal not typically cited as radioactive. Which option does not belong? Options: Radium, Thorium, Sodium, Uranium.
• Classification – Category vs items: pick the odd one out. Three are specific stationery items; one is the umbrella category that includes them. Which option is different? Options: Stationery, Pencil, Pen, Marker.
• Classification – Ordered pairs (function rule): identify the odd one out. In three pairs, the second term equals first^3 + 1; one pair violates this mapping. Which pair is different? Options: 1 : 2, 3 : 28, 4 : 65, 2 : 7.
• Classification – Ordered pairs (linear rule): choose the odd one out. In three pairs the mapping is y = 2x − 2; one pair does not follow this rule. Which pair is different? Options: 22 : 42, 4 : 6, 11 : 20, 5 : 14.
• Classification – Ordered pairs (ratio rule): identify the odd one out. In three pairs the ratio y:x equals 8:7 exactly; one pair does not satisfy this exact ratio. Which pair is different? Options: 21 : 24, 28 : 32, 14 : 16, 54 : 62.
• Classification – Ordered pairs (affine rule): pick the odd one out. In three pairs the mapping is y = 4x − 1; one pair violates this exact rule. Which pair is different? Options: 6 : 23, 3 : 11, 1 : 3, 5 : 18.
• Classification (material → product vs item → category): Three pairs show a raw material used to make finished products; one pair instead names an item that belongs to a broader category. Identify the odd pair.
• Classification (number pairs – linear rule): In three pairs the second value follows y = 4x + 2; one pair violates this rule. Identify the odd pair.
• Classification (luminous vs non-luminous celestial bodies): Three objects shine by reflected sunlight; one object produces its own light. Identify the odd one out.
• Classification (optical vs audio instruments): Three devices are used to see distant or tiny objects; one device captures sound. Identify the odd one out.
• Classification (human anatomy – systems): Three terms belong to the circulatory system; one term belongs chiefly to the digestive/respiratory tract. Identify the odd one out.
• Classification (gemstones – typical appearance): Three gemstones are typically strongly coloured; one is characteristically colourless/near-colourless in its most valued form. Identify the odd one out.
• Classification (spelling – colour terms): Three entries are correctly spelled shades of red; one entry is misspelled. Identify the misspelled one.
• Classification (parts of speech): Three entries are action verbs; one entry is a noun denoting a performer. Identify the odd one out.
• Classification (spectral vs non-spectral colours): Three are spectral colours in the visible spectrum; one is a non-spectral composite colour. Identify the odd one out.
• Classification (materials vs finished structure): Three options are building materials; one option is a completed structure/thing made from materials. Identify the odd one out.