Question
What is a mineral? How does it differ from an ore ?###Differentiate between mineral and ore.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| t/s | 0 | 30 | 60 | 90 |
| [Ester]/mol L-1 | 0.55 | 0.31 | 0.17 | 0.085 |
| t (sec) | P(mm of Hg) |
| 0 | 35.0 |
| 360 | 54.0 |
| 720 | 63.0 |
Match the reactions given in Column I with the names given in Column II.
| Column I | Column II | ||
| (i) | ![]() | (a) | Nucleophilic aromatic substitution |
| (ii) | $\text{CH}_3-\text{CH}==\text{CH}_2+\text{HBr}\xrightarrow{ \ \ \ \ \ }\text{CH}_3-\text{CH}-\text{CH}_3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \ \ \ \ \ \ \ \ \ \ \ \text{Br}$ | (b) | Electrophilic aromatic substitution |
| (iii) | ![]() | (c) | Saytzeff elimination |
| (iv) | ![]() | (d) | Electrophilic addition |
| (v) | $\text{CH}_3\text{CH}_2\text{CH}\text{CH}_3\xrightarrow{\text{alc.KOH}}\text{CH}_3\text{CH}==\text{CH}\text{CH}_3\ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Br}$ | (e) | Nucleophilic substitution (SN1) |