JEE Main20248 Apr 2024Morning ShiftChemistryPractical ChemistryActual
Match List I with List II ( array |l|l|l|l| & List-I & & List-II & (Name of the test) & & (Reaction sequence involved) [M is metal] A. & Borax bead test & I. & MCO ₃ MO Co ( NO ₃ )₂ CoO MO B. & array l Charcoal cavity test array & II. & MCO ₃ MCl ₂ M ²⁺ C & array l Cobalt nitrate test array & III & MSO ₄ [ ] Na ₂ ~B ₄ O ₇ M ( BO ₂ )₂ MBO ₂ M D. & Flame test & IV & MSO ₄ [ ] Na ₂ CO ₃ MCO ₃ MO M array ) Choose the cor
Options
- AA-III, B-II, C-IV, D-I
- BA-III, B-IV, C-I, D-II
- CA-III, B-I, C-II, D-IV
- DA-III, B-I, C-IV, D-II
Correct answer
B. A-III, B-IV, C-I, D-II
Step-by-step solution
Cobalt nitrate test MCO ₃ MO [+ ] Co ( NO ₃ )₂ CoO. MO Flame test MCO ₃ MCl ₂ M ²⁺ Borax Bead test MSO ₄ Na ₂ ~B ₄ O ₇ M ( BO ₂ )₂ MBO ₂ M Charcoal cavity test MSO ₄ [ ] Na ₂ CO ₃ MCO ₃ MO M