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

316547 With reference to the group 15 elements the incorrect statement is

1 all the elements show allotropy
2 all the elements exhibit (-3) oxidation state in their covalent hydride
3 down the group, there is decrease in bond angles of hydrides of elements
4 Boiling point of \(\mathrm{NH}_{3}\) is more than \(\mathrm{PH}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316548 Identify the incorrect statements about group 15 elements.
(I) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(II) The common oxidation states of these elements are \({\mathrm{-3,+3}}\) and +5 .
(III) Nitrogen has unique ability to form \({\mathrm{\mathrm{p} \pi-\mathrm{p} \pi}}\) multiple bonds.
(IV) The stability of +5 oxidation state increases down the group.
(V) Nitrogen shows a maximum covalency of 6 .
Choose the correct answer from the options given below.

1 (I), (II), (IV) only
2 (II), (IV), (V) only
3 (IV) and (V) only
4 (I), (III), (V) only
JEE Main - 2024
CHXI11:THE P-BLOCK ELEMENTS

316549 Chilesaltpetre is the common name of

1 \(\mathrm{AgNO}_{3}\)
2 \(\mathrm{NaNO}_{3}\)
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{AgCl}\)
CHXI11:THE P-BLOCK ELEMENTS

316550 Which one of the following elemental forms is not present in the enamel of the teeth?

1 \(\mathrm{Ca}^{2+}\)
2 \(\mathrm{P}^{3+}\)
3 \(\mathrm{F}^{-}\)
4 \(\mathrm{P}^{5+}\)
JEE - 2022
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CHXI11:THE P-BLOCK ELEMENTS

316547 With reference to the group 15 elements the incorrect statement is

1 all the elements show allotropy
2 all the elements exhibit (-3) oxidation state in their covalent hydride
3 down the group, there is decrease in bond angles of hydrides of elements
4 Boiling point of \(\mathrm{NH}_{3}\) is more than \(\mathrm{PH}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316548 Identify the incorrect statements about group 15 elements.
(I) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(II) The common oxidation states of these elements are \({\mathrm{-3,+3}}\) and +5 .
(III) Nitrogen has unique ability to form \({\mathrm{\mathrm{p} \pi-\mathrm{p} \pi}}\) multiple bonds.
(IV) The stability of +5 oxidation state increases down the group.
(V) Nitrogen shows a maximum covalency of 6 .
Choose the correct answer from the options given below.

1 (I), (II), (IV) only
2 (II), (IV), (V) only
3 (IV) and (V) only
4 (I), (III), (V) only
JEE Main - 2024
CHXI11:THE P-BLOCK ELEMENTS

316549 Chilesaltpetre is the common name of

1 \(\mathrm{AgNO}_{3}\)
2 \(\mathrm{NaNO}_{3}\)
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{AgCl}\)
CHXI11:THE P-BLOCK ELEMENTS

316550 Which one of the following elemental forms is not present in the enamel of the teeth?

1 \(\mathrm{Ca}^{2+}\)
2 \(\mathrm{P}^{3+}\)
3 \(\mathrm{F}^{-}\)
4 \(\mathrm{P}^{5+}\)
JEE - 2022
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316547 With reference to the group 15 elements the incorrect statement is

1 all the elements show allotropy
2 all the elements exhibit (-3) oxidation state in their covalent hydride
3 down the group, there is decrease in bond angles of hydrides of elements
4 Boiling point of \(\mathrm{NH}_{3}\) is more than \(\mathrm{PH}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316548 Identify the incorrect statements about group 15 elements.
(I) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(II) The common oxidation states of these elements are \({\mathrm{-3,+3}}\) and +5 .
(III) Nitrogen has unique ability to form \({\mathrm{\mathrm{p} \pi-\mathrm{p} \pi}}\) multiple bonds.
(IV) The stability of +5 oxidation state increases down the group.
(V) Nitrogen shows a maximum covalency of 6 .
Choose the correct answer from the options given below.

1 (I), (II), (IV) only
2 (II), (IV), (V) only
3 (IV) and (V) only
4 (I), (III), (V) only
JEE Main - 2024
CHXI11:THE P-BLOCK ELEMENTS

316549 Chilesaltpetre is the common name of

1 \(\mathrm{AgNO}_{3}\)
2 \(\mathrm{NaNO}_{3}\)
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{AgCl}\)
CHXI11:THE P-BLOCK ELEMENTS

316550 Which one of the following elemental forms is not present in the enamel of the teeth?

1 \(\mathrm{Ca}^{2+}\)
2 \(\mathrm{P}^{3+}\)
3 \(\mathrm{F}^{-}\)
4 \(\mathrm{P}^{5+}\)
JEE - 2022
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CHXI11:THE P-BLOCK ELEMENTS

316547 With reference to the group 15 elements the incorrect statement is

1 all the elements show allotropy
2 all the elements exhibit (-3) oxidation state in their covalent hydride
3 down the group, there is decrease in bond angles of hydrides of elements
4 Boiling point of \(\mathrm{NH}_{3}\) is more than \(\mathrm{PH}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316548 Identify the incorrect statements about group 15 elements.
(I) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(II) The common oxidation states of these elements are \({\mathrm{-3,+3}}\) and +5 .
(III) Nitrogen has unique ability to form \({\mathrm{\mathrm{p} \pi-\mathrm{p} \pi}}\) multiple bonds.
(IV) The stability of +5 oxidation state increases down the group.
(V) Nitrogen shows a maximum covalency of 6 .
Choose the correct answer from the options given below.

1 (I), (II), (IV) only
2 (II), (IV), (V) only
3 (IV) and (V) only
4 (I), (III), (V) only
JEE Main - 2024
CHXI11:THE P-BLOCK ELEMENTS

316549 Chilesaltpetre is the common name of

1 \(\mathrm{AgNO}_{3}\)
2 \(\mathrm{NaNO}_{3}\)
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{AgCl}\)
CHXI11:THE P-BLOCK ELEMENTS

316550 Which one of the following elemental forms is not present in the enamel of the teeth?

1 \(\mathrm{Ca}^{2+}\)
2 \(\mathrm{P}^{3+}\)
3 \(\mathrm{F}^{-}\)
4 \(\mathrm{P}^{5+}\)
JEE - 2022
For More Updates join with Us