- 1(current)
Q. No.Identify the correct relationship of stability from the options provided.
1. \(\mathrm{TlI > TlI_3}\)
2. \(\mathrm{TlCl_3 > TlCl}\)
3. \(\mathrm{InI_3 > InI }\)
4. \(\mathrm{AlCl > AlCl_3 }\)
1. \(\mathrm{TlI > TlI_3}\)
2. \(\mathrm{TlCl_3 > TlCl}\)
3. \(\mathrm{InI_3 > InI }\)
4. \(\mathrm{AlCl > AlCl_3 }\)
Subtopic: Â Compounds of Boron- Preparations, Properties & Uses |
 76%
Level 2: 60%+
NEET - 2023
Hints
Which of the following statements is not correct about diborane?
| 1. | Both the boron atoms are sp2 hybridised. |
| 2. | There are two 3-centre-2-electron bonds. |
| 3. | The four terminal B-H bonds are 2-centre-2-electron bonds. |
| 4. | The four terminal hydrogen atoms and the two boron atoms lie in one plane. |
Subtopic: Â Compounds of Boron- Preparations, Properties & Uses |
 64%
Level 2: 60%+
NEET - 2022
Hints
Match List-I with List-II:
Choose the correct answer from the options given below :
| List-I (Compounds) |
List-II (Molecular formula) |
||
| (a) | Borax | (i) | NaBO2+B2O3 |
| (b) | Kernite | (ii) | Na2B4O7.4H2O |
| (c) | Orthoboric acid | (iii) | H3BO3 |
| (d) | Borax bead | (iv) | Na2B4O7.10H2O |
Choose the correct answer from the options given below :
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (ii) | (iii) | (i) |
| 2. | (ii) | (iv) | (iii) | (i) |
| 3. | (iii) | (i) | (iv) | (ii) |
| 4. | (i) | (iii) | (iv) | (ii) |
Subtopic: Â Compounds of Boron- Preparations, Properties & Uses |
 82%
Level 1: 80%+
NEET - 2022
Hints
In the reaction given below, the product "X" is :
\(\mathrm{Na_2B_4O_7\xrightarrow{\text{ heat }~~}X+NaBO_2 }\)
\(\mathrm{Na_2B_4O_7\xrightarrow{\text{ heat }~~}X+NaBO_2 }\)
| 1. | H3BO3 | 2. | B2O3 |
| 3. | Na2B2O5 | 4. | NaB3O5 |
Subtopic: Â Compounds of Boron- Preparations, Properties & Uses |
 66%
Level 2: 60%+
NEET - 2022
Hints
Subtopic: Â Compounds of Boron- Preparations, Properties & Uses |
 82%
Level 1: 80%+
NEET - 2018
Hints
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- 1(current)
Q. No.
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