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JEE Main 20248 AprilMorning Shift
Exam
JEE Main
Year
2024
Date
8 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Practical Chemistry

JEE Main 2024 · 8 April · Morning Shift · Chemistry · Practical Chemistry

Match List I with List II ( List-I List-II (Name of the test)...

Match List I with List II (
List-IList-II
(Name of the test)(Reaction sequence involved) [M is metal]
A.Borax bead testI.MCO_3 → MO \xrightarrow{Co \left(NO_3\right)_2} CoO\cdotMO</td></tr><tr><td>B.</td><td>Charcoal<br>cavitytest</td><td>II.</td><td>MCO3→MCl2→M2+MO</td></tr><tr><td>B.</td><td>Charcoal <br> cavity test</td><td>II.</td><td>MCO_3 → MCl_2 \rightarrow \mathrm{M}^{2+}
CCobalt nitrate
test		IIIMSO_4 \xrightarrow[Δ]Na2B4O7\Delta]{Na_2 B_4 O_7}M\left(BO_2\right)_2 → MBO_2 → M
D.Flame testIVMSO_4 \xrightarrow[Δ]Na2CO3\Delta]{Na_2 CO_3}MCO_3 → MO → M
) Choose the correct answer from the options given below:

Options

  1. AA-III, B-II, C-IV, D-I
  2. BA-III, B-IV, C-I, D-II
  3. CA-III, B-I, C-II, D-IV
  4. 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 MCO3→MO→+ΔCo( NO 3)2\mathrm{MCO}_3 \rightarrow \mathrm{MO} \xrightarrow[+\Delta]{\mathrm{Co}\left(\mathrm{\text{ NO }}_3\right)_2}CoO.CoO.\mathrm{MO}FlametestFlame test\mathrm{MCO}_3 \rightarrow \mathrm{MCl}_2 \rightarrow \mathrm{M}^{2+}BoraxBeadtestBorax Bead test\mathrm{MSO}_4 \underset{\Delta}{\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7} \mathrm{M}\left(\mathrm{BO}_2\right)_2 \rightarrow \mathrm{MBO}_2 \rightarrow \mathrm{M}CharcoalcavitytestCharcoal cavity test\mathrm{MSO}_4 \xrightarrow[\Delta]{\mathrm{Na}_2 \mathrm{CO}_3} \mathrm{MCO}_3 \rightarrow \mathrm{MO} \rightarrow \mathrm{M}
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