UPSC EPFO EO/AO 2021 · Question 51

Question 51 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 · Q51 · General Science & Computers · Chemistry

   Which one of the following substances, when added to water, will not change the pH?

   1. NaHCO₃
   2. NH₄Cl
   3. Na₂CO₃
   4. NaCl

   जल में मिलाए जाने पर, निम्नलिखित में से कौन-सा पदार्थ pH को परिवर्तित नहीं करेगा?

   1. NaHCO₃
   2. NH₄Cl
   3. Na₂CO₃
   4. NaCl

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