NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI11:THE P-BLOCK ELEMENTS
316198
Conc. \(\mathrm{HNO}_{3}\) is stored in containers made up of
1 \(\mathrm{Cu}\)
2 \(\mathrm{Zn}\)
3 \(\mathrm{Al}\)
4 \(\mathrm{Sn}\)
Explanation:
\(\mathrm{Al}\) is rendered passive by formation of a impervious layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\) on its surface when brought in contact with conc. \(\mathrm{HNO}_{3}\). \(\mathrm{So}, \mathrm{Al}\) containers are used to store conc. \(\mathrm{HNO}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS
316234
In compounds of type \(\mathrm{ECl}_{3}\), where \(E=B, P\), As or \(\mathrm{Bi}\), the angles \(\mathrm{Cl}-\mathrm{E}-\mathrm{Cl}\) for different \(\mathrm{E}\) are in the order
1 \({\rm{B < P < As < Bi}}\)
2 \({\rm{B < P = As = Bi}}\)
3 \({\rm{B > P > As > Bi}}\)
4 \({\rm{B < P = As = Bi}}\)
Explanation:
\({\rm{B > P > As > Bi}}\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
CHXI11:THE P-BLOCK ELEMENTS
316199
Which of the following reactions does not liberate gaseous product?
1 \(\mathrm{AlCl}_{3}+\mathrm{NaOH} \rightarrow\)
2 \(\mathrm{NaOH}+\mathrm{P}(\) white \()+\mathrm{H}_{2} \mathrm{O} \rightarrow\)
316198
Conc. \(\mathrm{HNO}_{3}\) is stored in containers made up of
1 \(\mathrm{Cu}\)
2 \(\mathrm{Zn}\)
3 \(\mathrm{Al}\)
4 \(\mathrm{Sn}\)
Explanation:
\(\mathrm{Al}\) is rendered passive by formation of a impervious layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\) on its surface when brought in contact with conc. \(\mathrm{HNO}_{3}\). \(\mathrm{So}, \mathrm{Al}\) containers are used to store conc. \(\mathrm{HNO}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS
316234
In compounds of type \(\mathrm{ECl}_{3}\), where \(E=B, P\), As or \(\mathrm{Bi}\), the angles \(\mathrm{Cl}-\mathrm{E}-\mathrm{Cl}\) for different \(\mathrm{E}\) are in the order
1 \({\rm{B < P < As < Bi}}\)
2 \({\rm{B < P = As = Bi}}\)
3 \({\rm{B > P > As > Bi}}\)
4 \({\rm{B < P = As = Bi}}\)
Explanation:
\({\rm{B > P > As > Bi}}\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
CHXI11:THE P-BLOCK ELEMENTS
316199
Which of the following reactions does not liberate gaseous product?
1 \(\mathrm{AlCl}_{3}+\mathrm{NaOH} \rightarrow\)
2 \(\mathrm{NaOH}+\mathrm{P}(\) white \()+\mathrm{H}_{2} \mathrm{O} \rightarrow\)
316198
Conc. \(\mathrm{HNO}_{3}\) is stored in containers made up of
1 \(\mathrm{Cu}\)
2 \(\mathrm{Zn}\)
3 \(\mathrm{Al}\)
4 \(\mathrm{Sn}\)
Explanation:
\(\mathrm{Al}\) is rendered passive by formation of a impervious layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\) on its surface when brought in contact with conc. \(\mathrm{HNO}_{3}\). \(\mathrm{So}, \mathrm{Al}\) containers are used to store conc. \(\mathrm{HNO}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS
316234
In compounds of type \(\mathrm{ECl}_{3}\), where \(E=B, P\), As or \(\mathrm{Bi}\), the angles \(\mathrm{Cl}-\mathrm{E}-\mathrm{Cl}\) for different \(\mathrm{E}\) are in the order
1 \({\rm{B < P < As < Bi}}\)
2 \({\rm{B < P = As = Bi}}\)
3 \({\rm{B > P > As > Bi}}\)
4 \({\rm{B < P = As = Bi}}\)
Explanation:
\({\rm{B > P > As > Bi}}\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
CHXI11:THE P-BLOCK ELEMENTS
316199
Which of the following reactions does not liberate gaseous product?
1 \(\mathrm{AlCl}_{3}+\mathrm{NaOH} \rightarrow\)
2 \(\mathrm{NaOH}+\mathrm{P}(\) white \()+\mathrm{H}_{2} \mathrm{O} \rightarrow\)
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS
316198
Conc. \(\mathrm{HNO}_{3}\) is stored in containers made up of
1 \(\mathrm{Cu}\)
2 \(\mathrm{Zn}\)
3 \(\mathrm{Al}\)
4 \(\mathrm{Sn}\)
Explanation:
\(\mathrm{Al}\) is rendered passive by formation of a impervious layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\) on its surface when brought in contact with conc. \(\mathrm{HNO}_{3}\). \(\mathrm{So}, \mathrm{Al}\) containers are used to store conc. \(\mathrm{HNO}_{3}\).
CHXI11:THE P-BLOCK ELEMENTS
316234
In compounds of type \(\mathrm{ECl}_{3}\), where \(E=B, P\), As or \(\mathrm{Bi}\), the angles \(\mathrm{Cl}-\mathrm{E}-\mathrm{Cl}\) for different \(\mathrm{E}\) are in the order
1 \({\rm{B < P < As < Bi}}\)
2 \({\rm{B < P = As = Bi}}\)
3 \({\rm{B > P > As > Bi}}\)
4 \({\rm{B < P = As = Bi}}\)
Explanation:
\({\rm{B > P > As > Bi}}\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
CHXI11:THE P-BLOCK ELEMENTS
316199
Which of the following reactions does not liberate gaseous product?
1 \(\mathrm{AlCl}_{3}+\mathrm{NaOH} \rightarrow\)
2 \(\mathrm{NaOH}+\mathrm{P}(\) white \()+\mathrm{H}_{2} \mathrm{O} \rightarrow\)