Importance and Application of Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

321904 In quantitative analysis of second group in laboratory, \(\mathrm{H}_{2} \mathrm{~S}\) gas is passed in acidic medium for precipitation. When \(\mathrm{Cu}^{2+}\) and \(\mathrm{Cd}^{2+}\) react with \(\mathrm{KCN}\), then for product true statement is

1 \(\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) more soluble
2 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{4}\right]\) less stable
3 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{3}\right]\) more stable
4 \(\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) less stable
CHXII09:COORDINATION COMPOUNDS

321905 What is the coordination entity formed when excess of aqueous \(\mathrm{KCN}\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) is passed through this solution?

1 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\left(\mathrm{SO}_{4}\right)\right], \mathrm{Cu}^{2+}\) is not ionisable
2 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}, \mathrm{Cu}^{2+}\) is not ionisable
3 \(\left[\mathrm{Cu}(\mathrm{CN})_{2} \mathrm{SO}_{4}\right], \mathrm{Cu}^{2+}\) is not ionisable
4 \(\mathrm{Cu}(\mathrm{CN})_{2}\), a covalent compound hence not ionisable
CHXII09:COORDINATION COMPOUNDS

321906 Assertion :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) is soluble in \(\mathrm{NH}_{4} \mathrm{OH}\) but not in \(\mathrm{NaOH}\).
Reason :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) forms a soluble complex with \(\mathrm{NH}_{3}\).

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321907 Which is used in cancer - chemotherapy?

1 cis-platin
2 Zeise's salt
3 Both (1) and (2)
4 None
CHXII09:COORDINATION COMPOUNDS

321908 Which one of the following statement is correct?

1 From a mixed precipitate of \(\mathrm{AgCl}\) and \(\mathrm{AgI}\), ammonia solution dissolves only \(\mathrm{AgCl}\).
2 Manganese salt give a violet borax test in reducing flame.
3 On boiling a solution having \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\) and \(\mathrm{HCO}_{3}^{-}\)ions, we get a precipitate of \(\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}\).
4 Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.
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CHXII09:COORDINATION COMPOUNDS

321904 In quantitative analysis of second group in laboratory, \(\mathrm{H}_{2} \mathrm{~S}\) gas is passed in acidic medium for precipitation. When \(\mathrm{Cu}^{2+}\) and \(\mathrm{Cd}^{2+}\) react with \(\mathrm{KCN}\), then for product true statement is

1 \(\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) more soluble
2 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{4}\right]\) less stable
3 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{3}\right]\) more stable
4 \(\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) less stable
CHXII09:COORDINATION COMPOUNDS

321905 What is the coordination entity formed when excess of aqueous \(\mathrm{KCN}\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) is passed through this solution?

1 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\left(\mathrm{SO}_{4}\right)\right], \mathrm{Cu}^{2+}\) is not ionisable
2 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}, \mathrm{Cu}^{2+}\) is not ionisable
3 \(\left[\mathrm{Cu}(\mathrm{CN})_{2} \mathrm{SO}_{4}\right], \mathrm{Cu}^{2+}\) is not ionisable
4 \(\mathrm{Cu}(\mathrm{CN})_{2}\), a covalent compound hence not ionisable
CHXII09:COORDINATION COMPOUNDS

321906 Assertion :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) is soluble in \(\mathrm{NH}_{4} \mathrm{OH}\) but not in \(\mathrm{NaOH}\).
Reason :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) forms a soluble complex with \(\mathrm{NH}_{3}\).

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321907 Which is used in cancer - chemotherapy?

1 cis-platin
2 Zeise's salt
3 Both (1) and (2)
4 None
CHXII09:COORDINATION COMPOUNDS

321908 Which one of the following statement is correct?

1 From a mixed precipitate of \(\mathrm{AgCl}\) and \(\mathrm{AgI}\), ammonia solution dissolves only \(\mathrm{AgCl}\).
2 Manganese salt give a violet borax test in reducing flame.
3 On boiling a solution having \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\) and \(\mathrm{HCO}_{3}^{-}\)ions, we get a precipitate of \(\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}\).
4 Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.
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CHXII09:COORDINATION COMPOUNDS

321904 In quantitative analysis of second group in laboratory, \(\mathrm{H}_{2} \mathrm{~S}\) gas is passed in acidic medium for precipitation. When \(\mathrm{Cu}^{2+}\) and \(\mathrm{Cd}^{2+}\) react with \(\mathrm{KCN}\), then for product true statement is

1 \(\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) more soluble
2 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{4}\right]\) less stable
3 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{3}\right]\) more stable
4 \(\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) less stable
CHXII09:COORDINATION COMPOUNDS

321905 What is the coordination entity formed when excess of aqueous \(\mathrm{KCN}\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) is passed through this solution?

1 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\left(\mathrm{SO}_{4}\right)\right], \mathrm{Cu}^{2+}\) is not ionisable
2 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}, \mathrm{Cu}^{2+}\) is not ionisable
3 \(\left[\mathrm{Cu}(\mathrm{CN})_{2} \mathrm{SO}_{4}\right], \mathrm{Cu}^{2+}\) is not ionisable
4 \(\mathrm{Cu}(\mathrm{CN})_{2}\), a covalent compound hence not ionisable
CHXII09:COORDINATION COMPOUNDS

321906 Assertion :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) is soluble in \(\mathrm{NH}_{4} \mathrm{OH}\) but not in \(\mathrm{NaOH}\).
Reason :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) forms a soluble complex with \(\mathrm{NH}_{3}\).

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321907 Which is used in cancer - chemotherapy?

1 cis-platin
2 Zeise's salt
3 Both (1) and (2)
4 None
CHXII09:COORDINATION COMPOUNDS

321908 Which one of the following statement is correct?

1 From a mixed precipitate of \(\mathrm{AgCl}\) and \(\mathrm{AgI}\), ammonia solution dissolves only \(\mathrm{AgCl}\).
2 Manganese salt give a violet borax test in reducing flame.
3 On boiling a solution having \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\) and \(\mathrm{HCO}_{3}^{-}\)ions, we get a precipitate of \(\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}\).
4 Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.
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CHXII09:COORDINATION COMPOUNDS

321904 In quantitative analysis of second group in laboratory, \(\mathrm{H}_{2} \mathrm{~S}\) gas is passed in acidic medium for precipitation. When \(\mathrm{Cu}^{2+}\) and \(\mathrm{Cd}^{2+}\) react with \(\mathrm{KCN}\), then for product true statement is

1 \(\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) more soluble
2 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{4}\right]\) less stable
3 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{3}\right]\) more stable
4 \(\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) less stable
CHXII09:COORDINATION COMPOUNDS

321905 What is the coordination entity formed when excess of aqueous \(\mathrm{KCN}\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) is passed through this solution?

1 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\left(\mathrm{SO}_{4}\right)\right], \mathrm{Cu}^{2+}\) is not ionisable
2 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}, \mathrm{Cu}^{2+}\) is not ionisable
3 \(\left[\mathrm{Cu}(\mathrm{CN})_{2} \mathrm{SO}_{4}\right], \mathrm{Cu}^{2+}\) is not ionisable
4 \(\mathrm{Cu}(\mathrm{CN})_{2}\), a covalent compound hence not ionisable
CHXII09:COORDINATION COMPOUNDS

321906 Assertion :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) is soluble in \(\mathrm{NH}_{4} \mathrm{OH}\) but not in \(\mathrm{NaOH}\).
Reason :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) forms a soluble complex with \(\mathrm{NH}_{3}\).

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321907 Which is used in cancer - chemotherapy?

1 cis-platin
2 Zeise's salt
3 Both (1) and (2)
4 None
CHXII09:COORDINATION COMPOUNDS

321908 Which one of the following statement is correct?

1 From a mixed precipitate of \(\mathrm{AgCl}\) and \(\mathrm{AgI}\), ammonia solution dissolves only \(\mathrm{AgCl}\).
2 Manganese salt give a violet borax test in reducing flame.
3 On boiling a solution having \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\) and \(\mathrm{HCO}_{3}^{-}\)ions, we get a precipitate of \(\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}\).
4 Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.
Join With Us for More Updates
CHXII09:COORDINATION COMPOUNDS

321904 In quantitative analysis of second group in laboratory, \(\mathrm{H}_{2} \mathrm{~S}\) gas is passed in acidic medium for precipitation. When \(\mathrm{Cu}^{2+}\) and \(\mathrm{Cd}^{2+}\) react with \(\mathrm{KCN}\), then for product true statement is

1 \(\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) more soluble
2 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{4}\right]\) less stable
3 \(\mathrm{K}_{2}\left[\mathrm{Cd}(\mathrm{CN})_{3}\right]\) more stable
4 \(\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]\) less stable
CHXII09:COORDINATION COMPOUNDS

321905 What is the coordination entity formed when excess of aqueous \(\mathrm{KCN}\) is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when \(\mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})\) is passed through this solution?

1 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\left(\mathrm{SO}_{4}\right)\right], \mathrm{Cu}^{2+}\) is not ionisable
2 \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}, \mathrm{Cu}^{2+}\) is not ionisable
3 \(\left[\mathrm{Cu}(\mathrm{CN})_{2} \mathrm{SO}_{4}\right], \mathrm{Cu}^{2+}\) is not ionisable
4 \(\mathrm{Cu}(\mathrm{CN})_{2}\), a covalent compound hence not ionisable
CHXII09:COORDINATION COMPOUNDS

321906 Assertion :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) is soluble in \(\mathrm{NH}_{4} \mathrm{OH}\) but not in \(\mathrm{NaOH}\).
Reason :
\(\mathrm{Cu}(\mathrm{OH})_{2}\) forms a soluble complex with \(\mathrm{NH}_{3}\).

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321907 Which is used in cancer - chemotherapy?

1 cis-platin
2 Zeise's salt
3 Both (1) and (2)
4 None
CHXII09:COORDINATION COMPOUNDS

321908 Which one of the following statement is correct?

1 From a mixed precipitate of \(\mathrm{AgCl}\) and \(\mathrm{AgI}\), ammonia solution dissolves only \(\mathrm{AgCl}\).
2 Manganese salt give a violet borax test in reducing flame.
3 On boiling a solution having \(\mathrm{K}^{+}, \mathrm{Ca}^{2+}\) and \(\mathrm{HCO}_{3}^{-}\)ions, we get a precipitate of \(\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}\).
4 Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.