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Q. No.Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from I to VI.
A. Al3+
B.Cu2+
C. Ba2+
D. Co2+
E. Mg2+
Choose the correct answer from the options given below
1. B, C, A, D, E
2. E, C, D, B, A
3. E, A, B, C, D
4. B, A, D, C, E
A. Al3+
B.Cu2+
C. Ba2+
D. Co2+
E. Mg2+
Choose the correct answer from the options given below
1. B, C, A, D, E
2. E, C, D, B, A
3. E, A, B, C, D
4. B, A, D, C, E
Subtopic: Â Detection of Cations |
NEET - 2024
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During the preparation of Mohr's salt solution ( Ferrous ammonium sulphate ), which of the following acid is added to prevent hydrolysis of Fe2+ ion?
1. Concentrated sulphuric acid
2. Dilute nitric acid
3. Dilute sulphuric acid
4. Dilute hydrochloric acid
1. Concentrated sulphuric acid
2. Dilute nitric acid
3. Dilute sulphuric acid
4. Dilute hydrochloric acid
Subtopic: Â Preparation of the Organic and Inorganic compounds |
From NCERT
NEET - 2024
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In salt analysis group V radicals \(\mathrm{(Ba^{2+}, Ca^{2+} ~and ~Sr^{2+} )}\) are precipitated as their carbonates
by adding solid \(\mathrm{NH_4Cl}\) and excess of \(\mathrm{NH_4OH}\) solution followed by solid \(\mathrm{(NH_4)_2CO_3}\)
Choose the correct reagent used for the confirmation of \(\mathrm{Ca^{2+}}\) ion from the following:
1. Ammonium sulphate
2. Potassium chromate
3. Ammonium oxalate
4. Ammonium nitrate
by adding solid \(\mathrm{NH_4Cl}\) and excess of \(\mathrm{NH_4OH}\) solution followed by solid \(\mathrm{(NH_4)_2CO_3}\)
Choose the correct reagent used for the confirmation of \(\mathrm{Ca^{2+}}\) ion from the following:
1. Ammonium sulphate
2. Potassium chromate
3. Ammonium oxalate
4. Ammonium nitrate
Subtopic: Â Detection of Cations |
NEET - 2024
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In salt analyses, \(\mathrm{Cl^-,Br^-}\) and \(\mathrm{I^-}\) are identified by adding dilute \(\mathrm{HNO_3}\) followed by \(\mathrm{AgNO_3}\) solution to the salt solution. Choose the correct statements from the following.
Choose the correct answer from the options given below:
1. B and C only
2. A and B only
3. A and E only
4. D and E only
| A. | \(\mathrm{Cl^-}\) gives pale yellow precipitate. |
| B. | \(\mathrm{Br^-}\) gives pale yellow precipitate which is partially soluble in \(\mathrm{NH_4OH.}\) |
| C. | \(\mathrm{I^-}\) gives yellow precipitate which is insoluble in \(\mathrm{NH_4OH.}\) |
| D. | \(\mathrm{Cl^-}\) gives white precipitate which is insoluble in \(\mathrm{NH_4OH.}\) |
| E. | \(\mathrm{I^-}\) gives purple violet gas. |
Choose the correct answer from the options given below:
1. B and C only
2. A and B only
3. A and E only
4. D and E only
Subtopic: Â Detection of Anions |
NEET - 2024
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