Question:

The polyvalent antivenom commonly available in India is NOT effective against which of the following snake ?

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Indian polyvalent ASV covers “Big Four” only; pit vipers are not included.
Updated On: May 18, 2026
  • Common Cobra
  • Common Krait
  • Russell’s Viper
  • Hump nosed pit Viper
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The Correct Option is D

Solution and Explanation

Concept: Polyvalent anti-snake venom (ASV) in India is designed to neutralize venom from the “Big Four” snakes.

Step 1: Identifying the Big Four.

The polyvalent antivenom in India is effective against:
• Indian Cobra (Naja naja)
• Common Krait (Bungarus caeruleus)
• Russell’s Viper (Daboia russelii)
• Saw-scaled Viper (Echis carinatus)

Step 2: Evaluating the options.


• Common Cobra → Covered

• Common Krait → Covered

• Russell’s Viper → Covered

• Hump nosed pit viper → NOT covered

Step 3: Final evaluation.

Hump-nosed pit viper venom is not neutralized by standard Indian polyvalent ASV. Final Conclusion:
Hence, the correct answer is option (4).
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