Previous year paper
UPSC CDS (II) 2023: previous year paper (84 questions)
- 84 questions
- 101 minutes
- +1 right · no negative marking
- 0 students ranked
84 questions from this paper (of the 91 we have; questions we could not answer reliably are left out) in the paper's order. Answers come from our checked MCQ bank or, where the paper had no answer key, from an AI check: confirm with the commission's official key.
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First questions
- How much percentage of carbon dioxide is present in the atmosphere of Venus and Mars ?
- Which among the following methods is used to separate the constituents present in a compound ?
- During white-washing of walls, slaked lime reacts slowly with carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Which of the following reactions represents this correctly ?