Question
IUD
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Answer
IUD – Intra-Uterine Device
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| i. Group 18 | (a) Main group elements |
| ii. Group 3 – 12 | (b) Noble gases |
| iii. Group 13 – 18 | (c) Halogens |
| iv. Group 17 | (d) Transition elements |
| 1. Deuterium | (a) |
| 2. Protium | (b) |
| 3. Tritium | (c) |
| 4. α – decay | (d) |
| 5. β – decay | (e) |
| i. $H _2 O$ | (a) 16 |
| ii. $CO _2$ | (b) 18 |
| iii. $C _6 H _{12} O _6$ | (c) 44 |
| iv. $CH _4$ | (d) 180 |
| 1. Acyclic compounds | (a) Cyclobutene |
| 2. Alicyclic compounds | (b) Ethene |
| 3. Homocyclic aromatic compounds | (c) Pyridine |
| 4. Heterocyclic compounds | (d) Benzene |
| 1. Pituitary gland | (a) Female sex gland |
| 2. Thyroid gland | (b) Male sex gland |
| 3. Parathyroid | (c) Above the kidney |
| 4. Islets of Langerhans | (d) The posterior surface of the thyroid lobe |
| 5. Adrenal gland | (e) The upper part of the chest, the lower end of the trachea |
| 6. Testes | (f) Base of midbrain |
| 7. Ovary | (g) Pancreas |
| 8. Thymus | (h) Trachea |
| 1. ρ=RAl | (a) watt |
| 2. σ=1ρ | (b) Ωm |
| 3. E = P × t | (c) coulomb |
| 4. P = VI | (d) $m ^{-1} \Omega^{-1}$ |
| 5. q = It | (e) Kilowatt-hour |
| 1.$CH _3 OH$ | (a) Dimethyl Ketone |
| 2. $CH _3 CHO$ | (b) Acetic acid |
| 3. $CH _3 COCH _3$ | (c) Acetaldehyde |
| 4. $CH _3 COOH$ | (d) Methyl alcohol |
Match the column I with column II.
| 1. Big Bang theory | (a) study of regions and practical use of plants |
| 2. Petrifaction | (b) organisms buried and cause depression |
| 3. Archaeopteryx | (c) other names for astrobiology |
| 4. Ethnobotany | (d) preserve hard and soft parts |
| 5. Mould | (e) origin of the universe |
| 6. Exobiology | (f) fossil bird |
| Waves | Range |
| (i) Audible | (a) 340 m/s |
| (ii) Sound | (b) greater than 20kHz |
| (iii) Infrasonic | (c) 20Hz – 20 kHz |
| (iv) Light | (d) below 20 Hz |
| (v) Ultrasonic | (e) $3 \times 10^8 m / s$ |