UPSC EPFO EO/AO 2021 · Question 54

Question 54 of the UPSC EPFO EO/AO Recruitment Test 2021 (General Ability Test, Advt. 51/2020) (5 September 2021). Try it first, then check your answer and the explanation in the practice app.

1. EO/AO 2021 · Q54 · General Science & Computers · Chemistry

   Who among the following discovered Proton?

   1. J.J. Thomson
   2. E. Goldstein
   3. E. Rutherford
   4. J. Chadwick

   निम्नलिखित में से किसने प्रोटॉन की खोज की थी?

   1. जे.जे. थॉमसन
   2. ई. गोल्डस्टीन
   3. ई. रदरफोर्ड
   4. जे. चैडविक

   Answer and explanation: open it in the practice app. 3 days free when you register, then one ₹45 PYQ Pass for every exam on the site.

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