Olympiad Test : Odd One Out - 1 - Class 6 MCQ

- History, Civics, and Geography are social sciences.
- They study human society, relationships, and environments.
- Physics is a natural science.
- It focuses on the properties and interactions of matter and energy.
- The odd one out is Physics because it is not a social science like the others.

- The options are different types of places of worship.
- A: Mosque, B: Temple, and D: Church are all correctly spelled and recognized religious sites.
- C: Mentery is a misspelled word; it likely refers to "Monastery," which is a place for monks, differing in function and structure.
- The odd one out is C: Mentery due to the spelling error and its unique role compared to the others.

- Operating system (A) is software that manages computer hardware and software resources.
- Hard disk (B), Printer (C), and Pendrive (D) are physical hardware devices.
- The odd one out is Operating system because it is not a physical device like the others but rather a crucial software component necessary for running other software and managing hardware.

- Ruby, Sapphire, and Diamond are all gemstones.
- They are formed naturally and are prized for their beauty and rarity.
- Marble is a type of metamorphic rock, primarily used in sculpture and as a building material.
- Marble is not considered a gemstone and does not have the same application in jewelry as the others.
- Therefore, Marble is the odd one out as it is not classified as a gemstone but rather a rock used in construction and art.

- Peel is the odd one out because it refers to the act of removing the outer layer or skin from food.
- Fry, Roast, and Bake are all cooking methods involving heat to cook food.
- Peeling is a preparatory step, not a cooking method.
- Cooking methods like frying, roasting, and baking change the food's texture and flavor through heat.
- Therefore, the action of peeling does not fit with the cooking methods listed.

- Silicon, Gallium, and Germanium are all classified as metalloids or elements with properties between metals and non-metals.
- Potassium is a metal, specifically an alkali metal, which has distinct properties such as being highly reactive and having a single electron in its outer shell.
- Therefore, Potassium is the odd one out because it is a metal, while the others are metalloids.

- Kiwi, Emu, and Penguin are all flightless birds.
- They have adaptations that make flying difficult, such as small wings, large bodies, or specific evolutionary traits.
- Eagle is the odd one out because it is a bird of prey known for its powerful flight.
- Eagles have large wingspans and are adept fliers, unlike the other birds listed.
- Therefore, Eagle is different from the others in terms of its ability to fly. 

- Tomato, Brinjal, and Gourd: These are all fruits, botanically speaking. They develop from the ovary after flowering and contain seeds.
- Carrot: This is a root vegetable. It does not develop from the flower's ovary and does not contain seeds.
- Odd one out: Carrot, because it is a root vegetable, unlike the others which are fruits.

- The task is to identify the odd one out among the given options.
- A: India, B: Japan, C: Sri Lanka, D: Malagasy.
- India, Japan, and Sri Lanka are names of countries.
- "Malagasy" refers to the people or the language of Madagascar, not the country itself.
- Therefore, "Malagasy" is the odd one out as it is not a country name like the others.

- All options except C (Microphone) are devices associated with enhancing or aiding vision.
- Spectacles, goggles, and telescopes are used to correct vision, protect eyes, or observe distant objects, respectively.
- A microphone, on the other hand, is an audio device used to capture or amplify sound.
- Thus, the microphone is the odd one out as it serves a different sensory purpose, focusing on hearing rather than sight.

- Hammer is the odd one out because it is a tool, while the others (Dagger, Sword, Knife) are weapons.
- The primary use of a hammer is for construction work, such as driving nails or breaking objects.
- Daggers, swords, and knives can be used as tools, but they are primarily designed and recognized for their use as weapons.
- Thus, the key distinguishing factor is the primary function: tool (Hammer) versus weapon (Dagger, Sword, Knife).

- The task is to identify which item does not belong to the same category as the others.
- Options A, C, and D (Trunk, Leaf, Flower) are all parts of a tree.
- Option B (Tree) is the whole entity that includes the trunk, leaves, and flowers.
- Therefore, the correct answer is B: Tree, as it represents the whole rather than a part.

- The task is to identify the odd one out from the list: Dog, Horse, Fox, Cat.
- Dogs, horses, and cats are commonly domesticated animals.
- The fox is typically a wild animal and not domesticated like the others.
- While all are mammals, the key distinction is domestication status.
- Thus, "Fox" is the odd one out because it's not typically kept as a domestic pet.

- Cap, Helmet, and Hat: All are types of headgear designed to be worn on the head for protection or fashion.
- Veil: Primarily used as a covering for the face or head, often for ceremonial or cultural reasons, not primarily functional as headgear like the others.
- Odd one out: Veil, as it serves a different primary function compared to the others, which are mainly for head protection or sun shielding.

Write, Read, and Learn are all actions or verbs. They involve doing something actively.

Knowledge is a noun. It is the result or possession of learning and reading, not an action itself.

Therefore, Knowledge is the odd one out as it differs in grammatical category from the others. 

Radio, Computer, and Television are devices used for communication or entertainment, operating primarily to receive, process, or display information.

X-ray is fundamentally different as it is a type of electromagnetic radiation used primarily in medical imaging and other scientific applications, not for communication or entertainment.

Thus, X-ray is the odd one out because it serves a distinct function unrelated to everyday consumer electronics or media.

• Earth: Habitable (the only confirmed world that sustains human life naturally).
• Venus: Not habitable without extraordinary artificial habitats (surface is extremely hostile).
• Mercury: Not habitable without extraordinary artificial habitats (extreme temperatures and no atmosphere).
• Saturn: Not habitable; a gas giant with no solid surface and extreme atmospheric conditions.

In conclusion, under current scientific understanding, only Earth is naturally inhabitable by humans. Venus, Mercury, and Saturn are not naturally habitable for human life.

• Cabbage, Cauliflower, and Radish are all vegetables. They are parts of plants consumed primarily for their nutritional value as food.


• Cashew is a nut, which is a seed of the cashew tree. It is commonly consumed as a snack or used in various culinary dishes but is not a vegetable.


• The odd one out is Cashew because it is not a vegetable, unlike the other options.

- The task is to identify the odd one out from the given options: Delicious, Sour, Bitter, Sweet.
- Delicious is a general term used to describe something pleasant to taste, not a specific taste.
- Sour, Bitter, and Sweet are specific taste sensations.
- Therefore, the odd one out is Delicious because it describes an overall pleasant taste rather than a specific type of taste.

- Cotton, silk, and wool are natural fibers.
- Nylon is a synthetic fiber.
- Natural fibers are obtained from plant or animal sources, while synthetic fibers are man-made through chemical processes.
- Cotton is derived from cotton plants, silk from silkworms, and wool from sheep.
- Nylon is produced from petrochemicals in a laboratory setting.
- Therefore, the odd one out is Nylon, as it is the only synthetic fiber among the options.