Question

An isotope of hydrogen (A) reacts with diatomic molecule of element which occupies group number 16 and period number 2 to give compound (B) is used as a moderator in nuclear reaction. (A) adds on to a compound (C), which has the molecular formula C₃H₆ to give (D). Identify A, B, C and D.

Answer 1

An isotope of hydrogen (A) reacts with diatomic molecule of element which occupies group number 16 and period number 2 to give compound (B) is used as a moderator in nuclear reaction.

\[\ce{2D2 + O2 -> 2D2O}\]

The isotope of hydrogen is deuterium (A), diatomic element is oxygen and the compound (B) is heavy water.

(A) adds on to a compound (C), which has the molecular formula C₃H₆ to give (D).

\[\ce{\underset{\text{(C)}}{CH3} - CH = CH2 + D2 -> \underset{\text{(D)}}{CH3} - CHD - CH2D}\]

The compound (C) is propene and (D) is 1, 2 deutropropane.

• A – Deuterium (D₂)
• B – Heavy water (D₂O)
• C – Propene \[\ce{(CH3 - CH = CH2)}\]
• D – 1, 2 deutero propene \[\ce{(CH3 - CHD - CH2D)}\]