UPSC CDS (I) 2023: previous year paper (92 questions)
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Previous year paper

UPSC CDS (I) 2023: previous year paper (92 questions)

  • 92 questions
  • 110 minutes
  • +1 right · no negative marking
  • 0 students ranked

92 questions from this paper (of the 101 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

  1. A sprinter feels cramps and pain in the thigh muscles after a run. This is due to accumulation of
  2. A leaf was plucked from a plant on a sunny day and kept for 2 minutes in boiling water. It was subsequently immersed in boiling alcohol and treated with iodine solution. What will be the final colour of the leaf after the test?
  3. If the red blood cells (RBCs) of human blood are isolated and are diluted in normal saline (an isotonic solution to blood), what will happen to the RBCs?