1
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
To an aqueous solution containing ions such as Al3+, Zn2+, Ca2+, Fe3+, Ni2+, Ba2+ and Cu2+ was added conc. HCl, followed by H2S.
The total number of cations precipitated during this reaction is/are :
The total number of cations precipitated during this reaction is/are :
2
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Cu2+ salt reacts with potassium iodide to give
3
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :
Statement I : The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH4OH.
Statement II : The dimethyl glyoxime is a bidentate neutral ligand.
In the light of the above statements, choose the correct answer from the options given below :
Statement I : The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH4OH.
Statement II : The dimethyl glyoxime is a bidentate neutral ligand.
In the light of the above statements, choose the correct answer from the options given below :
4
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Match the following :
Test/Method | Reagent |
---|---|
(i) Lucas Test | (a) C6H5SO2Cl/ aq. KOH |
(ii) Dumas method | (b) HNO3/ AgNO3 |
(iii) Kjeldahl’s method | (c) CuO/CO2 |
(iv) Hinsberg test | (d) Conc. HCl and ZnCl2 |
(e) H2SO4 |
Questions Asked from Salt Analysis (MCQ (Single Correct Answer))
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