Year: 2023
Topic: Chemistry-Out Of Syllabus
Time :
1.
Which of the following statements are NOTcorrect?
A. Hydrogen is used to reduce heavy metal oxidesto metals.
B. Heavy water is used to study reactionmechanism.
C. Hydrogen is used to make saturated fats formoils.
D. The H-H bond dissociation enthalpy is lowestas compared to a single bond between twoatoms of any element.
E. Hydrogen reduces oxides of metals that aremore active than iron.
Choose the most approriate answer from theoptions given below:
A. Hydrogen is used to reduce heavy metal oxidesto metals.
B. Heavy water is used to study reactionmechanism.
C. Hydrogen is used to make saturated fats formoils.
D. The H-H bond dissociation enthalpy is lowestas compared to a single bond between twoatoms of any element.
E. Hydrogen reduces oxides of metals that aremore active than iron.
Choose the most approriate answer from theoptions given below: