Introduction to Group 13 Elements
CHXI11:THE P-BLOCK ELEMENTS

316556 Statement A :
The stability of +5 oxidation state decreases and that of +3 state increases down the group-15.
Statement B :
Inert pair effect is more prone in case of heavier members of p-block.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316558 The common oxidation states of group 15 elements are:

1 \({\rm{ + 3}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
2 \({\rm{ - 3}}\,\,{\rm{and}}\,\,{\rm{ - 5}}\)
3 \({\rm{ - 5}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
4 \({\rm{ - 3,}}\,\,{\rm{ + 3}}{\mkern 1mu} \,\,{\rm{and}}\,\,{\rm{ + 5}}\)
CHXI11:THE P-BLOCK ELEMENTS

316541 Read the Statement - A and Statement - B carefully to mark the correct option given below
Statement A :
\({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and \({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) can act as ligands to form transition metal complexes.
Statement B :
As N and P are from same group, the nature of bonding of \({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and
\({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) is always same with transition metals.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316542 I.
Covalency of \(\mathrm{N}\) is restricted to four
II. \(\mathrm{N}\) cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as the heavier element.
III. \(\mathrm{P}\) and As cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond with transition elements when their compounds like \(\mathrm{P}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{3}\) and \(\mathrm{As}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)_{3}\) act as ligands.
Which of the above statements are true? Choose the correct option.

1 I and II
2 II and III
3 I and III
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316556 Statement A :
The stability of +5 oxidation state decreases and that of +3 state increases down the group-15.
Statement B :
Inert pair effect is more prone in case of heavier members of p-block.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316558 The common oxidation states of group 15 elements are:

1 \({\rm{ + 3}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
2 \({\rm{ - 3}}\,\,{\rm{and}}\,\,{\rm{ - 5}}\)
3 \({\rm{ - 5}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
4 \({\rm{ - 3,}}\,\,{\rm{ + 3}}{\mkern 1mu} \,\,{\rm{and}}\,\,{\rm{ + 5}}\)
CHXI11:THE P-BLOCK ELEMENTS

316541 Read the Statement - A and Statement - B carefully to mark the correct option given below
Statement A :
\({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and \({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) can act as ligands to form transition metal complexes.
Statement B :
As N and P are from same group, the nature of bonding of \({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and
\({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) is always same with transition metals.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316542 I.
Covalency of \(\mathrm{N}\) is restricted to four
II. \(\mathrm{N}\) cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as the heavier element.
III. \(\mathrm{P}\) and As cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond with transition elements when their compounds like \(\mathrm{P}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{3}\) and \(\mathrm{As}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)_{3}\) act as ligands.
Which of the above statements are true? Choose the correct option.

1 I and II
2 II and III
3 I and III
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316556 Statement A :
The stability of +5 oxidation state decreases and that of +3 state increases down the group-15.
Statement B :
Inert pair effect is more prone in case of heavier members of p-block.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316558 The common oxidation states of group 15 elements are:

1 \({\rm{ + 3}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
2 \({\rm{ - 3}}\,\,{\rm{and}}\,\,{\rm{ - 5}}\)
3 \({\rm{ - 5}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
4 \({\rm{ - 3,}}\,\,{\rm{ + 3}}{\mkern 1mu} \,\,{\rm{and}}\,\,{\rm{ + 5}}\)
CHXI11:THE P-BLOCK ELEMENTS

316541 Read the Statement - A and Statement - B carefully to mark the correct option given below
Statement A :
\({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and \({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) can act as ligands to form transition metal complexes.
Statement B :
As N and P are from same group, the nature of bonding of \({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and
\({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) is always same with transition metals.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316542 I.
Covalency of \(\mathrm{N}\) is restricted to four
II. \(\mathrm{N}\) cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as the heavier element.
III. \(\mathrm{P}\) and As cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond with transition elements when their compounds like \(\mathrm{P}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{3}\) and \(\mathrm{As}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)_{3}\) act as ligands.
Which of the above statements are true? Choose the correct option.

1 I and II
2 II and III
3 I and III
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316556 Statement A :
The stability of +5 oxidation state decreases and that of +3 state increases down the group-15.
Statement B :
Inert pair effect is more prone in case of heavier members of p-block.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316558 The common oxidation states of group 15 elements are:

1 \({\rm{ + 3}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
2 \({\rm{ - 3}}\,\,{\rm{and}}\,\,{\rm{ - 5}}\)
3 \({\rm{ - 5}}\,\,{\rm{and}}\,\,{\rm{ + 5}}\)
4 \({\rm{ - 3,}}\,\,{\rm{ + 3}}{\mkern 1mu} \,\,{\rm{and}}\,\,{\rm{ + 5}}\)
CHXI11:THE P-BLOCK ELEMENTS

316541 Read the Statement - A and Statement - B carefully to mark the correct option given below
Statement A :
\({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and \({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) can act as ligands to form transition metal complexes.
Statement B :
As N and P are from same group, the nature of bonding of \({\mathrm{\mathrm{N}\left(\mathrm{CH}_{3}\right)_{3}}}\) and
\({\mathrm{\mathrm{P}\left(\mathrm{CH}_{3}\right)_{3}}}\) is always same with transition metals.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316542 I.
Covalency of \(\mathrm{N}\) is restricted to four
II. \(\mathrm{N}\) cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as the heavier element.
III. \(\mathrm{P}\) and As cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond with transition elements when their compounds like \(\mathrm{P}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{3}\) and \(\mathrm{As}\left(\mathrm{C}_{6} \mathrm{H}_{5}\right)_{3}\) act as ligands.
Which of the above statements are true? Choose the correct option.

1 I and II
2 II and III
3 I and III
4 All of these