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

Subtopic:  Preparation of the Organic and Inorganic compounds |
 52%
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
Subtopic:  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.
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:  Detection of Anions |
 57%
NEET - 2024
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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
 
Subtopic:  Detection of Cations |
NEET - 2024
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