JEE Main 2016 · 9 Apr · Shift 1 · Chemistry Q43

ChemistrySingle correct+4 / -1Question 43 of 90

Identify the incorrect statement regarding heavy water :

It reacts with

\ce{Al4C3}

to produce

\ce{CD4}

and

\ce{Al(OD)3}

It is used as a coolant in nuclear reactors.

It reacts with

\ce{CaC2}

to produce

\ce{C2D2}

and

\ce{Ca(OD)2}

It reacts with

\ce{SO3}

to form deuterated sulphuric acid (

\ce{D2SO4}

Answer and worked solution

Official answer: B

Heavy water is used as a moderator in nuclear reactors (to slow neutrons), which is what (2) misstates. The other three reactions are correct.

JEE Main 2016 · 9 Apr · Shift 1, Chemistry question 43