MCQ
What is the expected geometry of CH3 - NH - CH3?
- ASquare planar
- BTrigonal planar
- CTrigonal pyramidal
- DTrigonal bipyramidal
Explanation:
CH3 - NH - CH3 is an amine in which two hydrogen atoms are replaced by methyl groups.
The hybridisation of N atom of amines is same as that of ammonia, and is also expected to have a pyramidal geometry, with N at the apex and the groups CH3, H and CH3 occupying the corners of a trigonal base.
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| Column I | Column II |
| (a) Molarity | (1) $\frac{\text { Mass of solute }}{\text { Mass of solution }} \times 10^6$ |
| (b) Molality | (2) Number of gram moles of a solute per litre of solution |
| (c)Normality | (3) Number of gram moles of a solute per kg of solvent |
| (d) ppm | iv) Number of gram equivalent of a solute per litre of solution |