Order of stability:- \(\mathrm{NF}_{3}>\mathrm{NCl}_{3}>\mathrm{NBr}_{3}>\mathrm{NI}_{3}\)
JEE - 2022
CHXI11:THE P-BLOCK ELEMENTS
316231
Bismuth does not form stable pentahalide because of
1 Its higher electronegativity
2 Its smaller size
3 Inert pair effect
4 Non availability of d-orbitals
Explanation:
Due to inert pair effect
CHXI11:THE P-BLOCK ELEMENTS
316235
Which one of the following does not undergo hydrolysis?
1 \(\mathrm{AsCl}_{3}\)
2 \(\mathrm{SbCl}_{3}\)
3 \(\mathrm{PCl}_{3}\)
4 \({\rm{N}}{{\rm{F}}_{\rm{3}}}\)
Explanation:
Due to the absence of vacant d- orbitals in nitrogen.
CHXI11:THE P-BLOCK ELEMENTS
316236
Which of the following trihalides of nitrogen behaves as the weakest base?
1 \(\mathrm{NCl}_{3}\)
2 \(\mathrm{NI}_{3}\)
3 \(\mathrm{NF}_{3}\)
4 \(\mathrm{NBr}_{3}\)
Explanation:
Order of Lewis base strength : \(\mathop {{\rm{N}}{{\rm{F}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NC}}{{\rm{l}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NB}}{{\rm{r}}_{\rm{3}}}}\limits^{..} {\rm{ < }}{\mathop {{\rm{NI}}}\limits^{..} _{\rm{3}}}{\rm{.}}\) Central atom has one lone pair of electrons thus it can behave as Lewis base side atoms electronegativity increases acidic nature increases, basic nature decreases.
CHXI11:THE P-BLOCK ELEMENTS
316237
Which of the following oxides is most acidic?
1 \(\mathrm{As}_{2} \mathrm{O}_{3}\)
2 \(\mathrm{P}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Sb}_{2} \mathrm{O}_{3}\)
4 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
Explanation:
Acidic strength of oxides of group 15 elements decreases from top to bottom Order of Acid strength : \({{\rm{N}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > }}{{\rm{P}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > A}}{{\rm{s}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > S}}{{\rm{b}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
Order of stability:- \(\mathrm{NF}_{3}>\mathrm{NCl}_{3}>\mathrm{NBr}_{3}>\mathrm{NI}_{3}\)
JEE - 2022
CHXI11:THE P-BLOCK ELEMENTS
316231
Bismuth does not form stable pentahalide because of
1 Its higher electronegativity
2 Its smaller size
3 Inert pair effect
4 Non availability of d-orbitals
Explanation:
Due to inert pair effect
CHXI11:THE P-BLOCK ELEMENTS
316235
Which one of the following does not undergo hydrolysis?
1 \(\mathrm{AsCl}_{3}\)
2 \(\mathrm{SbCl}_{3}\)
3 \(\mathrm{PCl}_{3}\)
4 \({\rm{N}}{{\rm{F}}_{\rm{3}}}\)
Explanation:
Due to the absence of vacant d- orbitals in nitrogen.
CHXI11:THE P-BLOCK ELEMENTS
316236
Which of the following trihalides of nitrogen behaves as the weakest base?
1 \(\mathrm{NCl}_{3}\)
2 \(\mathrm{NI}_{3}\)
3 \(\mathrm{NF}_{3}\)
4 \(\mathrm{NBr}_{3}\)
Explanation:
Order of Lewis base strength : \(\mathop {{\rm{N}}{{\rm{F}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NC}}{{\rm{l}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NB}}{{\rm{r}}_{\rm{3}}}}\limits^{..} {\rm{ < }}{\mathop {{\rm{NI}}}\limits^{..} _{\rm{3}}}{\rm{.}}\) Central atom has one lone pair of electrons thus it can behave as Lewis base side atoms electronegativity increases acidic nature increases, basic nature decreases.
CHXI11:THE P-BLOCK ELEMENTS
316237
Which of the following oxides is most acidic?
1 \(\mathrm{As}_{2} \mathrm{O}_{3}\)
2 \(\mathrm{P}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Sb}_{2} \mathrm{O}_{3}\)
4 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
Explanation:
Acidic strength of oxides of group 15 elements decreases from top to bottom Order of Acid strength : \({{\rm{N}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > }}{{\rm{P}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > A}}{{\rm{s}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > S}}{{\rm{b}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
Order of stability:- \(\mathrm{NF}_{3}>\mathrm{NCl}_{3}>\mathrm{NBr}_{3}>\mathrm{NI}_{3}\)
JEE - 2022
CHXI11:THE P-BLOCK ELEMENTS
316231
Bismuth does not form stable pentahalide because of
1 Its higher electronegativity
2 Its smaller size
3 Inert pair effect
4 Non availability of d-orbitals
Explanation:
Due to inert pair effect
CHXI11:THE P-BLOCK ELEMENTS
316235
Which one of the following does not undergo hydrolysis?
1 \(\mathrm{AsCl}_{3}\)
2 \(\mathrm{SbCl}_{3}\)
3 \(\mathrm{PCl}_{3}\)
4 \({\rm{N}}{{\rm{F}}_{\rm{3}}}\)
Explanation:
Due to the absence of vacant d- orbitals in nitrogen.
CHXI11:THE P-BLOCK ELEMENTS
316236
Which of the following trihalides of nitrogen behaves as the weakest base?
1 \(\mathrm{NCl}_{3}\)
2 \(\mathrm{NI}_{3}\)
3 \(\mathrm{NF}_{3}\)
4 \(\mathrm{NBr}_{3}\)
Explanation:
Order of Lewis base strength : \(\mathop {{\rm{N}}{{\rm{F}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NC}}{{\rm{l}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NB}}{{\rm{r}}_{\rm{3}}}}\limits^{..} {\rm{ < }}{\mathop {{\rm{NI}}}\limits^{..} _{\rm{3}}}{\rm{.}}\) Central atom has one lone pair of electrons thus it can behave as Lewis base side atoms electronegativity increases acidic nature increases, basic nature decreases.
CHXI11:THE P-BLOCK ELEMENTS
316237
Which of the following oxides is most acidic?
1 \(\mathrm{As}_{2} \mathrm{O}_{3}\)
2 \(\mathrm{P}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Sb}_{2} \mathrm{O}_{3}\)
4 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
Explanation:
Acidic strength of oxides of group 15 elements decreases from top to bottom Order of Acid strength : \({{\rm{N}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > }}{{\rm{P}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > A}}{{\rm{s}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > S}}{{\rm{b}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
Order of stability:- \(\mathrm{NF}_{3}>\mathrm{NCl}_{3}>\mathrm{NBr}_{3}>\mathrm{NI}_{3}\)
JEE - 2022
CHXI11:THE P-BLOCK ELEMENTS
316231
Bismuth does not form stable pentahalide because of
1 Its higher electronegativity
2 Its smaller size
3 Inert pair effect
4 Non availability of d-orbitals
Explanation:
Due to inert pair effect
CHXI11:THE P-BLOCK ELEMENTS
316235
Which one of the following does not undergo hydrolysis?
1 \(\mathrm{AsCl}_{3}\)
2 \(\mathrm{SbCl}_{3}\)
3 \(\mathrm{PCl}_{3}\)
4 \({\rm{N}}{{\rm{F}}_{\rm{3}}}\)
Explanation:
Due to the absence of vacant d- orbitals in nitrogen.
CHXI11:THE P-BLOCK ELEMENTS
316236
Which of the following trihalides of nitrogen behaves as the weakest base?
1 \(\mathrm{NCl}_{3}\)
2 \(\mathrm{NI}_{3}\)
3 \(\mathrm{NF}_{3}\)
4 \(\mathrm{NBr}_{3}\)
Explanation:
Order of Lewis base strength : \(\mathop {{\rm{N}}{{\rm{F}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NC}}{{\rm{l}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NB}}{{\rm{r}}_{\rm{3}}}}\limits^{..} {\rm{ < }}{\mathop {{\rm{NI}}}\limits^{..} _{\rm{3}}}{\rm{.}}\) Central atom has one lone pair of electrons thus it can behave as Lewis base side atoms electronegativity increases acidic nature increases, basic nature decreases.
CHXI11:THE P-BLOCK ELEMENTS
316237
Which of the following oxides is most acidic?
1 \(\mathrm{As}_{2} \mathrm{O}_{3}\)
2 \(\mathrm{P}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Sb}_{2} \mathrm{O}_{3}\)
4 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
Explanation:
Acidic strength of oxides of group 15 elements decreases from top to bottom Order of Acid strength : \({{\rm{N}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > }}{{\rm{P}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > A}}{{\rm{s}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > S}}{{\rm{b}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
Order of stability:- \(\mathrm{NF}_{3}>\mathrm{NCl}_{3}>\mathrm{NBr}_{3}>\mathrm{NI}_{3}\)
JEE - 2022
CHXI11:THE P-BLOCK ELEMENTS
316231
Bismuth does not form stable pentahalide because of
1 Its higher electronegativity
2 Its smaller size
3 Inert pair effect
4 Non availability of d-orbitals
Explanation:
Due to inert pair effect
CHXI11:THE P-BLOCK ELEMENTS
316235
Which one of the following does not undergo hydrolysis?
1 \(\mathrm{AsCl}_{3}\)
2 \(\mathrm{SbCl}_{3}\)
3 \(\mathrm{PCl}_{3}\)
4 \({\rm{N}}{{\rm{F}}_{\rm{3}}}\)
Explanation:
Due to the absence of vacant d- orbitals in nitrogen.
CHXI11:THE P-BLOCK ELEMENTS
316236
Which of the following trihalides of nitrogen behaves as the weakest base?
1 \(\mathrm{NCl}_{3}\)
2 \(\mathrm{NI}_{3}\)
3 \(\mathrm{NF}_{3}\)
4 \(\mathrm{NBr}_{3}\)
Explanation:
Order of Lewis base strength : \(\mathop {{\rm{N}}{{\rm{F}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NC}}{{\rm{l}}_{\rm{3}}}}\limits^{..} {\rm{ < }}\mathop {{\rm{NB}}{{\rm{r}}_{\rm{3}}}}\limits^{..} {\rm{ < }}{\mathop {{\rm{NI}}}\limits^{..} _{\rm{3}}}{\rm{.}}\) Central atom has one lone pair of electrons thus it can behave as Lewis base side atoms electronegativity increases acidic nature increases, basic nature decreases.
CHXI11:THE P-BLOCK ELEMENTS
316237
Which of the following oxides is most acidic?
1 \(\mathrm{As}_{2} \mathrm{O}_{3}\)
2 \(\mathrm{P}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Sb}_{2} \mathrm{O}_{3}\)
4 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
Explanation:
Acidic strength of oxides of group 15 elements decreases from top to bottom Order of Acid strength : \({{\rm{N}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > }}{{\rm{P}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > A}}{{\rm{s}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}{\rm{ > S}}{{\rm{b}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
