Match the terms in Column-I with their description in Column-II and choose the correct option:
Column 1(Type of hydride) Column II A. Electron 1. MgH2 B. Electron precise 2. HF C. Electron rich 3. CH4 D. Saline Hydride 4. B2H6
Match the terms in Column-I with their description in Column-II and choose the correct option:
| Column 1(Type of hydride) | Column II | ||
| A. | Electron | 1. | MgH2 |
| B. | Electron precise | 2. | HF |
| C. | Electron rich | 3. | CH4 |
| D. | Saline Hydride | 4. | B2H6 |
- A-4
- B-3
- C-1
- D-2
The Correct Option is C
Solution and Explanation
Solution:
Match the terms in Column-I with their description in Column-II and choose the correct option:
Column 1(Type of hydride) Column II
A. Electron deficient 1. MgH2
B. Electron precise 2. HF
C. Electron rich 3. CH4
D. Saline Hydride 4. B2H6
Matching:
A. Electron deficient hydrides are those which have less than 8 electrons in their valence shell. B2H6 is an example of an electron deficient hydride.
Therefore, A matches with 4.
B. Electron precise hydrides are those which have exactly 8 electrons in their valence shell. CH4 is an example of an electron precise hydride.
Therefore, B matches with 3.
C. Electron rich hydrides are those which have more than 8 electrons in their valence shell due to the presence of lone pairs. HF has lone pairs on fluorine, making it an electron rich hydride.
Therefore, C matches with 2.
D. Saline hydrides are ionic hydrides formed by alkali and alkaline earth metals. MgH2 is an example of a saline hydride.
Therefore, D matches with 1.
Correct Matching:
A - 4 (B2H6)
B - 3 (CH4)
C - 2 (HF)
D - 1 (MgH2)
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Concepts Used:
Hydrides
The ones that are anions of a hydrogen atom are hydrides. Hydrogen can act or respond to different elements of the periodic desk. Nucleophilic, decreasing, and fundamental properties may be found in the interior of the chemicals of hydrogen, and hydride. Hydride compounds are devised with all factors of the periodic table, excluding a few noble gases. Hydrides are common compounds of hydrogen but with lesser electronegative elements.
Types of Hydrides:
Depending upon the evolution of a chemical bond and the elements that can act with the hydrogen atoms, there are three types of hydrides:
- Ionic Hydrides
- Covalent Hydrides
- Metallic or Interstitial Hydrides