Select Chapter Topics:
Q. No.Given below are two statements:
Statement I:
The oxide E₂O₅ is less acidic than E₂O₃, where element E is from group 15.
Statement II:
The acidic strength of E₂O₃ decreases as one moves down in group 15, where element E is from group 15.
1.
Both Statement I & Statement II are true.
2.
Both Statement I & Statement II are false.
3.
Statement I is true, while Statement II is false.
4.
Statement I is false, while Statement II is true.
The oxide E₂O₅ is less acidic than E₂O₃, where element E is from group 15.
The acidic strength of E₂O₃ decreases as one moves down in group 15, where element E is from group 15.
Subtopic: Group 15 - Preparation, Properties & Uses |
62%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following options correctly indicates the number of compounds containing a direct nitrogen-nitrogen (N-N) bond among N₂O, N₂O₄, N₂O₃, and N₂O₅?
| 1. | One (1) | 2. | Zero (0) |
| 3. | Three (3) | 4. | Two (2) |
Subtopic: Group 15 - Preparation, Properties & Uses |
54%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the following reactions,
\(\begin{aligned} &\mathrm{PCl}_{5}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{A}+\mathrm{HCl} \\ &\mathrm{A}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{B}+\mathrm{HCl} \end{aligned}\)
What is the maximum numbers of ionizable hydrogen in B?
1. Two (2)
2. Zero (0)
3. Three (3)
4. One (1)
\(\begin{aligned} &\mathrm{PCl}_{5}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{A}+\mathrm{HCl} \\ &\mathrm{A}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{B}+\mathrm{HCl} \end{aligned}\)
What is the maximum numbers of ionizable hydrogen in B?
1. Two (2)
2. Zero (0)
3. Three (3)
4. One (1)
Subtopic: Group 16 - Preparation, Properties & Uses |
57%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Lead nitrate decomposes on heating as:
\(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \stackrel{\Delta}{\longrightarrow} \mathrm{A}+\mathrm{PbO}+\mathrm{O}_{2} \)
'A' on dimerization gives 'B', then the number of bridging oxygen atom(s) in 'B' is:
1. 1
2. 0
3. 2
4. 3
\(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \stackrel{\Delta}{\longrightarrow} \mathrm{A}+\mathrm{PbO}+\mathrm{O}_{2} \)
'A' on dimerization gives 'B', then the number of bridging oxygen atom(s) in 'B' is:
1. 1
2. 0
3. 2
4. 3
Subtopic: Group 15 - Preparation, Properties & Uses |
68%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
PCl5 is formed whereas NCl5 is not formed because:
| 1. | Phosphorous has vacant d-orbitals while nitrogen does not have vacant d-orbitals. |
| 2. | PCl5 is stable while NCl5 is unstable. |
| 3. | Phosphorous is more reactive while nitrogen is inert. |
| 4. | Phosphorous has a large size while nitrogen has a small size. |
Subtopic: Group 15 - Preparation, Properties & Uses |
93%
Level 1: 80%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
The gas that is produced during the following reaction:
\(NH_{4}Cl + NaNO_{2} \xrightarrow[]{\Delta} Product\)
1. NH3
2. N2
3. Cl2
4. N2O
\(NH_{4}Cl + NaNO_{2} \xrightarrow[]{\Delta} Product\)
1. NH3
2. N2
3. Cl2
4. N2O
Subtopic: Group 15 - Preparation, Properties & Uses |
72%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
| Statement I: | Fluorine forms only one oxoacid. |
| Statement II: | Fluorine forms three oxides OF2, O2F2, and O2F. |
| 1. | Both Statement I & Statement II are true. |
| 2. | Both Statement I & Statement II are false. |
| 3. | Statement I is true while Statement II is false. |
| 4. | Statement I is false while Statement II is true |
Subtopic: Group 17 - Preparation, Properties & Uses |
64%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Group 17 - Preparation, Properties & Uses |
69%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Thionyl chloride on reaction with white phosphorous gives compound A.
A on hydrolysis gives compound B which is dibasic. Identify A and B:
A on hydrolysis gives compound B which is dibasic. Identify A and B:
| A | B | |
| 1 | PCl5 | H3PO2 |
| 2 | P4O6 | H3PO4 |
| 3 | POCl3 | H3PO4 |
| 4 | PCl3 | H3PO3 |
Subtopic: Group 15 - Preparation, Properties & Uses |
75%
Level 2: 60%+
JEE
Please attempt this question first.
Hints
Please attempt this question first.
The correct decreasing order of positive electron gain enthalpy for the following inert gases is:
He, Ne, Kr, Xe
1. He > Ne > Kr > Xe
2. He > Ne > Xe > Kr
3. He > Xe > Ne > Kr
4. Ne > Kr > Xe > He
He, Ne, Kr, Xe
1. He > Ne > Kr > Xe
2. He > Ne > Xe > Kr
3. He > Xe > Ne > Kr
4. Ne > Kr > Xe > He
Subtopic: Group 18 - Preparation, Properties & Uses |
Level 3: 35%-60%
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.