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Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv?
Most Upvoted Answer
Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxi...
Amphoteric metals are Zn, Al, Sb, As, Pb, Sn, Be, Ga, Cr
toh isme dekh lo ki.. kon sa amphoteric hai.. voh react kr jaega NH4OH se aur ppt bna dega
toh ans
option B(ii, iv) aaega
toh isme dekh lo ki.. kon sa amphoteric hai.. voh react kr jaega NH4OH se aur ppt bna dega
toh ans
option B(ii, iv) aaega
Community Answer
Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxi...
Explanation:
To determine which hydroxide is precipitated by NH4OH containing NH4Cl, we need to consider the solubility rules for hydroxides.
Solubility Rules for Hydroxides:
1. Group 1 (alkali) metal hydroxides are soluble.
2. Ammonium hydroxide (NH4OH) is soluble.
3. Hydroxides of Group 2 (alkaline earth) metals are slightly soluble.
4. Hydroxides of transition metals and aluminum are insoluble.
Analysis of Hydroxides:
i) Zn(OH)2: Zinc hydroxide is insoluble according to solubility rules for hydroxides.
ii) Cr(OH)3: Chromium hydroxide is insoluble according to solubility rules for hydroxides.
iii) Mg(OH)2: Magnesium hydroxide is slightly soluble according to solubility rules for hydroxides.
iv) Al(OH)3: Aluminum hydroxide is insoluble according to solubility rules for hydroxides.
Precipitation Analysis:
NH4OH containing NH4Cl acts as a weak base due to the presence of NH4OH. When NH4OH is added to a solution containing the cations Zn2+, Cr3+, Mg2+, and Al3+, it forms insoluble hydroxide precipitates with the cations.
Conclusion:
Based on the solubility rules for hydroxides and the precipitation analysis, the hydroxides that are precipitated by NH4OH containing NH4Cl are:
- Zn(OH)2
- Cr(OH)3
- Mg(OH)2
- Al(OH)3
Therefore, the correct answer is option D) i, ii, iii, iv.
To determine which hydroxide is precipitated by NH4OH containing NH4Cl, we need to consider the solubility rules for hydroxides.
Solubility Rules for Hydroxides:
1. Group 1 (alkali) metal hydroxides are soluble.
2. Ammonium hydroxide (NH4OH) is soluble.
3. Hydroxides of Group 2 (alkaline earth) metals are slightly soluble.
4. Hydroxides of transition metals and aluminum are insoluble.
Analysis of Hydroxides:
i) Zn(OH)2: Zinc hydroxide is insoluble according to solubility rules for hydroxides.
ii) Cr(OH)3: Chromium hydroxide is insoluble according to solubility rules for hydroxides.
iii) Mg(OH)2: Magnesium hydroxide is slightly soluble according to solubility rules for hydroxides.
iv) Al(OH)3: Aluminum hydroxide is insoluble according to solubility rules for hydroxides.
Precipitation Analysis:
NH4OH containing NH4Cl acts as a weak base due to the presence of NH4OH. When NH4OH is added to a solution containing the cations Zn2+, Cr3+, Mg2+, and Al3+, it forms insoluble hydroxide precipitates with the cations.
Conclusion:
Based on the solubility rules for hydroxides and the precipitation analysis, the hydroxides that are precipitated by NH4OH containing NH4Cl are:
- Zn(OH)2
- Cr(OH)3
- Mg(OH)2
- Al(OH)3
Therefore, the correct answer is option D) i, ii, iii, iv.
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Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv?
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Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv?.
Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider i) Zn(OH)2 ii) Cr(OH)3 iii) Mg(OH)2 iv) Al(OH)3 which hydroxide is precipitated by NH4OH containing NH4Cl A) i, ii B) ii, iv C) only iv D) i, ii, iii, iv?.
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