Select Chapter Topics:
Q. No.A chloride salt (A) upon reaction with an alkali solution gives gas (B) which in turn gives brown ppt (C) with Nessler’s reagent. A, B, and C are respectively:
1. \(NH_4Cl, NH_3\) and \(HgO\)
2. \(NH_4Cl, NH_3\) and \(Hg(NH_2)Cl\)
3. \(NH_4Cl, NH_3\) and \(HgO.Hg(NH_2)Cl\)
4. \(NH_4Cl, NH_3\) and \(HgO.Hg(NH_2)I\)
Subtopic: Detection of Cations |
65%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
A white sublimable substance turns black on treatment with an \(NH_3\) The substance may be:
1. \(Hg_2Cl_2\)
2. \(HgCl_2\)
3. \(As_2O_2\)
4. \(NH_4Cl\)
1. \(Hg_2Cl_2\)
2. \(HgCl_2\)
3. \(As_2O_2\)
4. \(NH_4Cl\)
Subtopic: Detection of Cations |
64%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Which of the following pairs of cations cannot be separated by using \(NH_3\) solution?
1. \(Pb^{2+},Zn^{2+}\)
2. \(Pb^{2+},Cu^{2+}\)
3. \(Zn^{2+},Cu^{2+}\)
4. \(Al^{3+},Ag^{+}\)
1. \(Pb^{2+},Zn^{2+}\)
2. \(Pb^{2+},Cu^{2+}\)
3. \(Zn^{2+},Cu^{2+}\)
4. \(Al^{3+},Ag^{+}\)
Subtopic: Detection of Cations |
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
An inorganic salt in its aqueous solution produced a white ppt with \(NaOH\) which dissolve in excess of \(NaOH.\) . Its aqueous solution produces light yellow ppt with \(AgNO_3\) and sparingly soluble in \(NH_4OH.\) . This salt, probably, is:
1. \(AlBr_3\)
2. \(AlI_3\)
3. \(AlCl_3\)
4. \(ZnCl\)
1. \(AlBr_3\)
2. \(AlI_3\)
3. \(AlCl_3\)
4. \(ZnCl\)
Subtopic: Detection of Cations |
65%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Which of the following does not respond to the chromyl chloride test?
1. \(HgCl_2\)
2. \(CuCl_2\)
3. \(N iCl_2\)
4. \(MnCl_2\)
1. \(HgCl_2\)
2. \(CuCl_2\)
3. \(N iCl_2\)
4. \(MnCl_2\)
Subtopic: Detection of Cations |
75%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Which of the following forms a black precipitate when \(H_2S\) gas is passed through its solution?
1. Acidic \(AgNO_3\)
2. \(Mg(NO_3)_2\)
3. Ammoniacal \(BaCl_2\)
4. All of them
1. Acidic \(AgNO_3\)
2. \(Mg(NO_3)_2\)
3. Ammoniacal \(BaCl_2\)
4. All of them
Subtopic: Detection of Cations |
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Which of the following combines with \(Fe ~(II) \) ions to form a brown complex?
1. \(N_2O \)
2. \(NO \)
3. \(N_2O_3 \)
4. \(N_2O_5 \)
1. \(N_2O \)
2. \(NO \)
3. \(N_2O_3 \)
4. \(N_2O_5 \)
Subtopic: Detection of Anions | Detection of extra elements |
79%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Sodium nitroprusside, when added to an alkaline solution of sulphide ions, produces purple colour ion due to formation of:
1. \(Na[Fe(H_2O)_5NOS]2 \)
2. \(Na_2[Fe(H_2O)_5NOS] \)
3. \(Na_3[Fe(CN)_5NOS] \)
4. \(Na_4[Fe(CN)_5NOS] \)
1. \(Na[Fe(H_2O)_5NOS]2 \)
2. \(Na_2[Fe(H_2O)_5NOS] \)
3. \(Na_3[Fe(CN)_5NOS] \)
4. \(Na_4[Fe(CN)_5NOS] \)
Subtopic: Detection of Anions |
65%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
The reagent used in the chromyl chloride test is:
1. \(K_2CrO_4 \)
2. \(CrO_3 \)
3. \(K_2Cr_2O_7 \)
4. \((NH_4)_2Cr_2O_7 \)
1. \(K_2CrO_4 \)
2. \(CrO_3 \)
3. \(K_2Cr_2O_7 \)
4. \((NH_4)_2Cr_2O_7 \)
Subtopic: Detection of Cations |
78%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Two test tubes containing nitrate and bromide are treated separately with conc. H2SO4. Brown fumes, thus evolved, are passed in water. The water will be coloured by vapours evolved from the test tube containing:
1. Nitrate
2. Bromide
3. Both (a) and (b)
4. None of these
1. Nitrate
2. Bromide
3. Both (a) and (b)
4. None of these
Subtopic: Detection of Anions |
50%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.