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Chemistry · PYQ NEET UG 2023
हिन्दीWhich of the following statements are NOT correct?\nA. Hydrogen is used to reduce heavy metal oxides to metals.\nB. Heavy water is used to study reaction mechanism.\nC. Hydrogen is used to make saturated fats from oils.\nD. The H-H bond dissociation enthalpy is lowest as compared to a single bond between two atoms of any element.\nE. Hydrogen reduces oxides of metals that are more active than iron.\nChoose the most appropriate answer from the options given below :
Correct answer · Option 2
D, E only
Explanation
Statement D is incorrect because H-H bond dissociation enthalpy is exceptionally high. Statement E is incorrect because hydrogen only reduces oxides of less active metals than iron.
