Oxygen and Its Compounds
CHXI11:THE P-BLOCK ELEMENTS

316810 Which of the following does not react with oxygen directly?

1 \(\mathrm{Pt}\)
2 \(\mathrm{Fe}\)
3 \(\mathrm{Zn}\)
4 \(\mathrm{Ti}\)
CHXI11:THE P-BLOCK ELEMENTS

316813 Given below are the oxides:
\(\mathrm{Na}_{2} \mathrm{O}, \mathrm{As}_{2} \mathrm{O}_{3}, \mathrm{~N}_{2} \mathrm{O}, \mathrm{NO}\) and \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Number of amphoteric oxides is

1 0
2 1
3 2
4 3
CHXI11:THE P-BLOCK ELEMENTS

316814 Which of the following oxides is amphoteric in character?

1 \(\mathrm{CaO}\)
2 \(\mathrm{CO}_{2}\)
3 \(\mathrm{SnO}_{2}\)
4 \(\mathrm{SiO}_{2}\)
CHXI11:THE P-BLOCK ELEMENTS

316815 Match the oxides given in column I with its nature given in column II and choose correct option.
Column I
Column II
A
\({\rm{P}}{{\rm{b}}_{\rm{3}}}{{\rm{O}}_{\rm{4}}}\)
P
Neutral oxide
B
\({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
Q
Acidic oxide
C
\({\rm{M}}{{\rm{n}}_{\rm{2}}}{{\rm{O}}_{\rm{7}}}\)
R
Basic oxide
D
\({\rm{B}}{{\rm{i}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
S
Mixed oxide

1 A - P, B - Q, C - R, D - S
2 A - S, B - P, C - Q, D - R
3 A - R, B - Q, C - S, D - P
4 A - S, B - R, C - P, D - Q
CHXI11:THE P-BLOCK ELEMENTS

316816 Uses of ozone \(\left(\mathrm{O}_{3}\right)\) includes
I. As an oxidising agent in the manufacture of \(\mathrm{KMnO}_{4}\)
II. As a germicide, disinfectant and for sterilisation.
III. For bleaching oils, flour, ivory, starch, etc.
The correct set of uses of ozone is

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

316810 Which of the following does not react with oxygen directly?

1 \(\mathrm{Pt}\)
2 \(\mathrm{Fe}\)
3 \(\mathrm{Zn}\)
4 \(\mathrm{Ti}\)
CHXI11:THE P-BLOCK ELEMENTS

316813 Given below are the oxides:
\(\mathrm{Na}_{2} \mathrm{O}, \mathrm{As}_{2} \mathrm{O}_{3}, \mathrm{~N}_{2} \mathrm{O}, \mathrm{NO}\) and \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Number of amphoteric oxides is

1 0
2 1
3 2
4 3
CHXI11:THE P-BLOCK ELEMENTS

316814 Which of the following oxides is amphoteric in character?

1 \(\mathrm{CaO}\)
2 \(\mathrm{CO}_{2}\)
3 \(\mathrm{SnO}_{2}\)
4 \(\mathrm{SiO}_{2}\)
CHXI11:THE P-BLOCK ELEMENTS

316815 Match the oxides given in column I with its nature given in column II and choose correct option.
Column I
Column II
A
\({\rm{P}}{{\rm{b}}_{\rm{3}}}{{\rm{O}}_{\rm{4}}}\)
P
Neutral oxide
B
\({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
Q
Acidic oxide
C
\({\rm{M}}{{\rm{n}}_{\rm{2}}}{{\rm{O}}_{\rm{7}}}\)
R
Basic oxide
D
\({\rm{B}}{{\rm{i}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
S
Mixed oxide

1 A - P, B - Q, C - R, D - S
2 A - S, B - P, C - Q, D - R
3 A - R, B - Q, C - S, D - P
4 A - S, B - R, C - P, D - Q
CHXI11:THE P-BLOCK ELEMENTS

316816 Uses of ozone \(\left(\mathrm{O}_{3}\right)\) includes
I. As an oxidising agent in the manufacture of \(\mathrm{KMnO}_{4}\)
II. As a germicide, disinfectant and for sterilisation.
III. For bleaching oils, flour, ivory, starch, etc.
The correct set of uses of ozone is

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

316810 Which of the following does not react with oxygen directly?

1 \(\mathrm{Pt}\)
2 \(\mathrm{Fe}\)
3 \(\mathrm{Zn}\)
4 \(\mathrm{Ti}\)
CHXI11:THE P-BLOCK ELEMENTS

316813 Given below are the oxides:
\(\mathrm{Na}_{2} \mathrm{O}, \mathrm{As}_{2} \mathrm{O}_{3}, \mathrm{~N}_{2} \mathrm{O}, \mathrm{NO}\) and \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Number of amphoteric oxides is

1 0
2 1
3 2
4 3
CHXI11:THE P-BLOCK ELEMENTS

316814 Which of the following oxides is amphoteric in character?

1 \(\mathrm{CaO}\)
2 \(\mathrm{CO}_{2}\)
3 \(\mathrm{SnO}_{2}\)
4 \(\mathrm{SiO}_{2}\)
CHXI11:THE P-BLOCK ELEMENTS

316815 Match the oxides given in column I with its nature given in column II and choose correct option.
Column I
Column II
A
\({\rm{P}}{{\rm{b}}_{\rm{3}}}{{\rm{O}}_{\rm{4}}}\)
P
Neutral oxide
B
\({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
Q
Acidic oxide
C
\({\rm{M}}{{\rm{n}}_{\rm{2}}}{{\rm{O}}_{\rm{7}}}\)
R
Basic oxide
D
\({\rm{B}}{{\rm{i}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
S
Mixed oxide

1 A - P, B - Q, C - R, D - S
2 A - S, B - P, C - Q, D - R
3 A - R, B - Q, C - S, D - P
4 A - S, B - R, C - P, D - Q
CHXI11:THE P-BLOCK ELEMENTS

316816 Uses of ozone \(\left(\mathrm{O}_{3}\right)\) includes
I. As an oxidising agent in the manufacture of \(\mathrm{KMnO}_{4}\)
II. As a germicide, disinfectant and for sterilisation.
III. For bleaching oils, flour, ivory, starch, etc.
The correct set of uses of ozone is

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

316810 Which of the following does not react with oxygen directly?

1 \(\mathrm{Pt}\)
2 \(\mathrm{Fe}\)
3 \(\mathrm{Zn}\)
4 \(\mathrm{Ti}\)
CHXI11:THE P-BLOCK ELEMENTS

316813 Given below are the oxides:
\(\mathrm{Na}_{2} \mathrm{O}, \mathrm{As}_{2} \mathrm{O}_{3}, \mathrm{~N}_{2} \mathrm{O}, \mathrm{NO}\) and \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Number of amphoteric oxides is

1 0
2 1
3 2
4 3
CHXI11:THE P-BLOCK ELEMENTS

316814 Which of the following oxides is amphoteric in character?

1 \(\mathrm{CaO}\)
2 \(\mathrm{CO}_{2}\)
3 \(\mathrm{SnO}_{2}\)
4 \(\mathrm{SiO}_{2}\)
CHXI11:THE P-BLOCK ELEMENTS

316815 Match the oxides given in column I with its nature given in column II and choose correct option.
Column I
Column II
A
\({\rm{P}}{{\rm{b}}_{\rm{3}}}{{\rm{O}}_{\rm{4}}}\)
P
Neutral oxide
B
\({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
Q
Acidic oxide
C
\({\rm{M}}{{\rm{n}}_{\rm{2}}}{{\rm{O}}_{\rm{7}}}\)
R
Basic oxide
D
\({\rm{B}}{{\rm{i}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
S
Mixed oxide

1 A - P, B - Q, C - R, D - S
2 A - S, B - P, C - Q, D - R
3 A - R, B - Q, C - S, D - P
4 A - S, B - R, C - P, D - Q
CHXI11:THE P-BLOCK ELEMENTS

316816 Uses of ozone \(\left(\mathrm{O}_{3}\right)\) includes
I. As an oxidising agent in the manufacture of \(\mathrm{KMnO}_{4}\)
II. As a germicide, disinfectant and for sterilisation.
III. For bleaching oils, flour, ivory, starch, etc.
The correct set of uses of ozone is

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

316810 Which of the following does not react with oxygen directly?

1 \(\mathrm{Pt}\)
2 \(\mathrm{Fe}\)
3 \(\mathrm{Zn}\)
4 \(\mathrm{Ti}\)
CHXI11:THE P-BLOCK ELEMENTS

316813 Given below are the oxides:
\(\mathrm{Na}_{2} \mathrm{O}, \mathrm{As}_{2} \mathrm{O}_{3}, \mathrm{~N}_{2} \mathrm{O}, \mathrm{NO}\) and \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
Number of amphoteric oxides is

1 0
2 1
3 2
4 3
CHXI11:THE P-BLOCK ELEMENTS

316814 Which of the following oxides is amphoteric in character?

1 \(\mathrm{CaO}\)
2 \(\mathrm{CO}_{2}\)
3 \(\mathrm{SnO}_{2}\)
4 \(\mathrm{SiO}_{2}\)
CHXI11:THE P-BLOCK ELEMENTS

316815 Match the oxides given in column I with its nature given in column II and choose correct option.
Column I
Column II
A
\({\rm{P}}{{\rm{b}}_{\rm{3}}}{{\rm{O}}_{\rm{4}}}\)
P
Neutral oxide
B
\({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
Q
Acidic oxide
C
\({\rm{M}}{{\rm{n}}_{\rm{2}}}{{\rm{O}}_{\rm{7}}}\)
R
Basic oxide
D
\({\rm{B}}{{\rm{i}}_{\rm{2}}}{{\rm{O}}_{\rm{3}}}\)
S
Mixed oxide

1 A - P, B - Q, C - R, D - S
2 A - S, B - P, C - Q, D - R
3 A - R, B - Q, C - S, D - P
4 A - S, B - R, C - P, D - Q
CHXI11:THE P-BLOCK ELEMENTS

316816 Uses of ozone \(\left(\mathrm{O}_{3}\right)\) includes
I. As an oxidising agent in the manufacture of \(\mathrm{KMnO}_{4}\)
II. As a germicide, disinfectant and for sterilisation.
III. For bleaching oils, flour, ivory, starch, etc.
The correct set of uses of ozone is

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