UPSC EPFO EO/AO 2023 · Question 90

Question 90 of the UPSC EPFO EO/AO Recruitment Test 2023 (General Ability Test) (2 July 2023). Try it first, then check your answer and the explanation in the practice app.

1. EO/AO 2023 · Q90 · General Science & Computers · Chemistry

   Which one of the following is an example of chemical change?

   1. Melting of wax
   2. Heating of iron
   3. Dissolution of sugar in water
   4. Burning of magnesium in air

   निम्नलिखित में से कौन-सा एक, रासायनिक परिवर्तन का उदाहरण है?

   1. मोम का पिघलना
   2. लोहे का तपाया जाना
   3. जल में चीनी का घुलना
   4. मैग्नीशियम का वायु में जलना

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