ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 Chemistry The Halogens and Noble Gases

Question:
Chlorine heptoxide (Cl ₂ O _{7) reacts with water to form?}

Option A):
Hypochlorous acid
Option B):
Perchloric acid
Option C):
Chlorine and oxygen
Option D):
Chloric acid

Correct Answer is Option B):
Perchloric acid