Question
Match the following:
✓
Answer
A. (v)
B. (iv)
C. (i)
D. (ii)
B. (iv)
C. (i)
D. (ii)
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| i. Cuprite | (a) Halide ore |
| ii. Marble | (b) Oxide ore |
| iii. Fluorspar | (c) Sulphide ore |
| iv. Galena | (d) Carbonate ore |
UTI
FSH.
| Process | Ores |
| i. Hydraulic process | (a) $ZnS$ |
| ii. Magnetic separation | (b) $Fe _2 O _3$ |
| iii. Froth floatation process | (c) $SnO _2$ |
| iv. Leaching process | (d) $Al _2 O _3 \cdot 2 H _2 O$ |
Match the column A with column B.
| Sample | pH |
| (i) Sour milk | (a) 4.2 |
| (ii) Tomato juice | (b) 4.5 |
| (iii) Seawater | (c) 12 |
| (iv) Lime water | (d) 8 |
MCH
| Elements | Electronegative value |
| i. F | (a) 2.5 |
| ii. Cl | (b) 2.8 |
| iii. Br | (c) 3.0 |
| iv. I | (d) 4.0 |
| 1. Deuterium | (a) |
| 2. Protium | (b) |
| 3. Tritium | (c) |
| 4. α – decay | (d) |
| 5. β – decay | (e) |
STD