316551
I : As, Sb, Bi are found mainly as sulphide minerals. II : Phosphoproteins are present in milk and eggs. Which of the above statement(s) is/are correct?
1 Only I
2 Only II
3 Both I and II
4 Neither I nor II
Explanation:
\(\mathrm{As}, \mathrm{Sb}, \mathrm{Bi}\) are found mainly in sulphide minerals, Phosphoproteins are present in milk and eggs.
CHXI11:THE P-BLOCK ELEMENTS
316552
Identify the oxoacids of nitrogen given below which disproportionates:
316553
Which among the following group 15 element forms most stable pentavalent compound?
1 Phosphorus
2 Antimony
3 Bismuth
4 Arsenic
Explanation:
Phosphorus being the group 15 element which forms most stable pentavalent compound due to the presence of vacant d-orbital to overlap with it. e.g. \(\mathrm{PCl}_{5}\) It also favours \(\mathrm{p} \pi-\mathrm{d} \pi\) bonding which has the strongest overlapping between the orbital \(1 \mathrm{~s}\), for a stable bond formation.
CHXI11:THE P-BLOCK ELEMENTS
316554
In which oxidation state, group 15 elements act as Lewis base?
1 +5
2 +4
3 -3
4 \({\rm{ + 3}}\)
Explanation:
Group 15 elements acts as Lewis base in -3 oxidation state due to avilability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom.
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316555
Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterised compound in +5 oxidation state. The compound is
1 \(\mathrm{Bi}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{BiF}_{5}\)
3 \(\mathrm{BiCl}_{5}\)
4 \(\mathrm{Bi}_{2} \mathrm{~S}_{5}\)
Explanation:
Due to small size and more reactivity of fluorine.
316551
I : As, Sb, Bi are found mainly as sulphide minerals. II : Phosphoproteins are present in milk and eggs. Which of the above statement(s) is/are correct?
1 Only I
2 Only II
3 Both I and II
4 Neither I nor II
Explanation:
\(\mathrm{As}, \mathrm{Sb}, \mathrm{Bi}\) are found mainly in sulphide minerals, Phosphoproteins are present in milk and eggs.
CHXI11:THE P-BLOCK ELEMENTS
316552
Identify the oxoacids of nitrogen given below which disproportionates:
316553
Which among the following group 15 element forms most stable pentavalent compound?
1 Phosphorus
2 Antimony
3 Bismuth
4 Arsenic
Explanation:
Phosphorus being the group 15 element which forms most stable pentavalent compound due to the presence of vacant d-orbital to overlap with it. e.g. \(\mathrm{PCl}_{5}\) It also favours \(\mathrm{p} \pi-\mathrm{d} \pi\) bonding which has the strongest overlapping between the orbital \(1 \mathrm{~s}\), for a stable bond formation.
CHXI11:THE P-BLOCK ELEMENTS
316554
In which oxidation state, group 15 elements act as Lewis base?
1 +5
2 +4
3 -3
4 \({\rm{ + 3}}\)
Explanation:
Group 15 elements acts as Lewis base in -3 oxidation state due to avilability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom.
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316555
Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterised compound in +5 oxidation state. The compound is
1 \(\mathrm{Bi}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{BiF}_{5}\)
3 \(\mathrm{BiCl}_{5}\)
4 \(\mathrm{Bi}_{2} \mathrm{~S}_{5}\)
Explanation:
Due to small size and more reactivity of fluorine.
316551
I : As, Sb, Bi are found mainly as sulphide minerals. II : Phosphoproteins are present in milk and eggs. Which of the above statement(s) is/are correct?
1 Only I
2 Only II
3 Both I and II
4 Neither I nor II
Explanation:
\(\mathrm{As}, \mathrm{Sb}, \mathrm{Bi}\) are found mainly in sulphide minerals, Phosphoproteins are present in milk and eggs.
CHXI11:THE P-BLOCK ELEMENTS
316552
Identify the oxoacids of nitrogen given below which disproportionates:
316553
Which among the following group 15 element forms most stable pentavalent compound?
1 Phosphorus
2 Antimony
3 Bismuth
4 Arsenic
Explanation:
Phosphorus being the group 15 element which forms most stable pentavalent compound due to the presence of vacant d-orbital to overlap with it. e.g. \(\mathrm{PCl}_{5}\) It also favours \(\mathrm{p} \pi-\mathrm{d} \pi\) bonding which has the strongest overlapping between the orbital \(1 \mathrm{~s}\), for a stable bond formation.
CHXI11:THE P-BLOCK ELEMENTS
316554
In which oxidation state, group 15 elements act as Lewis base?
1 +5
2 +4
3 -3
4 \({\rm{ + 3}}\)
Explanation:
Group 15 elements acts as Lewis base in -3 oxidation state due to avilability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom.
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316555
Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterised compound in +5 oxidation state. The compound is
1 \(\mathrm{Bi}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{BiF}_{5}\)
3 \(\mathrm{BiCl}_{5}\)
4 \(\mathrm{Bi}_{2} \mathrm{~S}_{5}\)
Explanation:
Due to small size and more reactivity of fluorine.
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CHXI11:THE P-BLOCK ELEMENTS
316551
I : As, Sb, Bi are found mainly as sulphide minerals. II : Phosphoproteins are present in milk and eggs. Which of the above statement(s) is/are correct?
1 Only I
2 Only II
3 Both I and II
4 Neither I nor II
Explanation:
\(\mathrm{As}, \mathrm{Sb}, \mathrm{Bi}\) are found mainly in sulphide minerals, Phosphoproteins are present in milk and eggs.
CHXI11:THE P-BLOCK ELEMENTS
316552
Identify the oxoacids of nitrogen given below which disproportionates:
316553
Which among the following group 15 element forms most stable pentavalent compound?
1 Phosphorus
2 Antimony
3 Bismuth
4 Arsenic
Explanation:
Phosphorus being the group 15 element which forms most stable pentavalent compound due to the presence of vacant d-orbital to overlap with it. e.g. \(\mathrm{PCl}_{5}\) It also favours \(\mathrm{p} \pi-\mathrm{d} \pi\) bonding which has the strongest overlapping between the orbital \(1 \mathrm{~s}\), for a stable bond formation.
CHXI11:THE P-BLOCK ELEMENTS
316554
In which oxidation state, group 15 elements act as Lewis base?
1 +5
2 +4
3 -3
4 \({\rm{ + 3}}\)
Explanation:
Group 15 elements acts as Lewis base in -3 oxidation state due to avilability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom.
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316555
Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterised compound in +5 oxidation state. The compound is
1 \(\mathrm{Bi}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{BiF}_{5}\)
3 \(\mathrm{BiCl}_{5}\)
4 \(\mathrm{Bi}_{2} \mathrm{~S}_{5}\)
Explanation:
Due to small size and more reactivity of fluorine.
316551
I : As, Sb, Bi are found mainly as sulphide minerals. II : Phosphoproteins are present in milk and eggs. Which of the above statement(s) is/are correct?
1 Only I
2 Only II
3 Both I and II
4 Neither I nor II
Explanation:
\(\mathrm{As}, \mathrm{Sb}, \mathrm{Bi}\) are found mainly in sulphide minerals, Phosphoproteins are present in milk and eggs.
CHXI11:THE P-BLOCK ELEMENTS
316552
Identify the oxoacids of nitrogen given below which disproportionates:
316553
Which among the following group 15 element forms most stable pentavalent compound?
1 Phosphorus
2 Antimony
3 Bismuth
4 Arsenic
Explanation:
Phosphorus being the group 15 element which forms most stable pentavalent compound due to the presence of vacant d-orbital to overlap with it. e.g. \(\mathrm{PCl}_{5}\) It also favours \(\mathrm{p} \pi-\mathrm{d} \pi\) bonding which has the strongest overlapping between the orbital \(1 \mathrm{~s}\), for a stable bond formation.
CHXI11:THE P-BLOCK ELEMENTS
316554
In which oxidation state, group 15 elements act as Lewis base?
1 +5
2 +4
3 -3
4 \({\rm{ + 3}}\)
Explanation:
Group 15 elements acts as Lewis base in -3 oxidation state due to avilability of lone pair of electrons on the central atom. This basic character of group 15 decreases down the group with an increase in the size of the central atom.
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316555
Elements of group- 15 form compounds in +5 oxidation state. However, bismuth forms only one well characterised compound in +5 oxidation state. The compound is
1 \(\mathrm{Bi}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{BiF}_{5}\)
3 \(\mathrm{BiCl}_{5}\)
4 \(\mathrm{Bi}_{2} \mathrm{~S}_{5}\)
Explanation:
Due to small size and more reactivity of fluorine.