322268 Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\) is NOT true?

322269 \(\mathrm{Ag}^{+}\)forms many complexes, some of these are \(\left[\operatorname{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)and \(\left[\operatorname{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right]^{3-}\).
Which of the following statement is true?

322270 Match Column I with Column II

322271 Assertion :
\(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) are reducing in nature.
Reason :
Unpaired electrons are present in their d-orbitals.

322272 In the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\), the \(\mathrm{NH}_{3}\) molecules are linked to the central metal ion by

322268 Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\) is NOT true?

322269 \(\mathrm{Ag}^{+}\)forms many complexes, some of these are \(\left[\operatorname{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)and \(\left[\operatorname{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right]^{3-}\).
Which of the following statement is true?

322270 Match Column I with Column II

322271 Assertion :
\(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) are reducing in nature.
Reason :
Unpaired electrons are present in their d-orbitals.

322272 In the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\), the \(\mathrm{NH}_{3}\) molecules are linked to the central metal ion by

322268 Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\) is NOT true?

322269 \(\mathrm{Ag}^{+}\)forms many complexes, some of these are \(\left[\operatorname{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)and \(\left[\operatorname{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right]^{3-}\).
Which of the following statement is true?

322270 Match Column I with Column II

322271 Assertion :
\(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) are reducing in nature.
Reason :
Unpaired electrons are present in their d-orbitals.

322272 In the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\), the \(\mathrm{NH}_{3}\) molecules are linked to the central metal ion by

322268 Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\) is NOT true?

322269 \(\mathrm{Ag}^{+}\)forms many complexes, some of these are \(\left[\operatorname{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)and \(\left[\operatorname{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right]^{3-}\).
Which of the following statement is true?

322270 Match Column I with Column II

322271 Assertion :
\(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) are reducing in nature.
Reason :
Unpaired electrons are present in their d-orbitals.

322272 In the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\), the \(\mathrm{NH}_{3}\) molecules are linked to the central metal ion by

322268 Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\) is NOT true?

322269 \(\mathrm{Ag}^{+}\)forms many complexes, some of these are \(\left[\operatorname{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)and \(\left[\operatorname{Ag}\left(\mathrm{S}_{2} \mathrm{O}_{3}\right)_{2}\right]^{3-}\).
Which of the following statement is true?

322270 Match Column I with Column II

322271 Assertion :
\(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) and \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\) are reducing in nature.
Reason :
Unpaired electrons are present in their d-orbitals.

322272 In the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\), the \(\mathrm{NH}_{3}\) molecules are linked to the central metal ion by