Which of the following statements are NOT correct?
(A) Hydrogen is used to reduce heavy metal oxides to metals.
(B) Heavy water is used to study reaction mechanism.
(C) Hydrogen is used to make saturated facts fromoils.
(D) The H-H bond dissociation enthalpy is lowest as
compared to a single bond between two atoms of any element.
(E) Hydrogen reduces oxides of metals the are more active than iron.
Choose the most appropriate answer from the options given below:

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

A, B, C only

B, C, D, E only

B, D only

D, E only

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

H-H bond dissociation enthalpy is highest (435.88 kJ mol^-1 ) as compared to single bond between two atoms of any elements.
Hydrogen can reduces oxides of metals which are below in reactivity series (which are less reactive than Hyd)
Iron oxide is more reactive, hence hydrogen can not reduces it and more active than it.

Watch 3-min video & get full concept clarity