Question
Match the proper terms from columns A and C with the description in column B.
| 'A' | 'B' | 'C' |
| Thallophyta | Seeds are formed in fruits. | Fern |
| Bryophyta | No natural covering on seeds. | Cycas |
| Pteridophyta | These plants mainly grow in water. | Tamarind |
| Gymnosperms | These plants need water for reproduction. | Moss |
| Angiosperms | Tissues are present for conduction of water and food | Algae |
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| Column ‘A’ | Column B’ |
| Radicals | Names |
| (1) $\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}$ | (a) Carbonate |
| (2) $\mathrm{ClO}_{3}^{-}$ | (b) Chromate |
| (3) $\mathrm{CO}_{3}^{2-}$ | (c) Dichromate |
| (4) $\mathrm{CrO}_{4}^{2-}$ | (d) Chlorate |
| Column ‘A’ | Column ‘B’ |
| (1) Banana peels | (a) 10 lakh years. |
| (2) Plastic bags | (b) 200-250 years. |
| (3) Leather shoes | (c) 3-4 weeks |
| (4) Aluminium cans | (d) 40-50 years |
| Column ‘A’ | Column ‘B’ |
| (1) Cerebrum | (a) Control of involuntary activities |
| (2) Cerebelleum | (b) Decision – making, memory and intellectual activities. |
| (3) Medulla oblongata | (c) Centre for coordination of reflex actions |
| (4) Spinal cord | (d) Maintaining body’s balance |
| Column ‘A | Column ‘B’ |
| (1) Water gas(2) Methane gas(3) Producer gas(4) Carbon dioxide gas | (a) CH4(b) CO + H2(c) CO2(d) CO + H2 + CO2 + N2 |
| Column ‘A’ | Column ‘B’ |
| (1) Thermocol (2) Tin cans (3) Woollen socks (4) Wood | (a) 1 year. (b) Infinite duration. (c) 10-15 years (d) 50-100 years |
| Column ‘A’ | Column ‘B’ |
| (1) Yellow and rinkled | (a) yyrr |
| (2) Green and round | (b) YyRr |
| (3) Yellow and round | (c) YYrr |
| (4) Green and wrinkled | (d) yyRr |
| Column ‘A’ | Column ‘B’ |
| (1) Crystalline blue vitriol | (a) $FeSO _4-7 H _2 O$ |
| (2) Crystalline green vitriol | (b) $K _2 SO _4- A1 _2\left( SO _4\right)_3 \cdot 24 H _2 O$ |
| (3) Crystalline | (c) $CuSO _4-5 H _2 O$ |
| (4) washing soda Crystalline alum | (d) $Na _2 CO _3 10 H _2 O$ |
| Column ‘A’ | Column ‘B’ |
| (1) Fullerene(2) Diamond(3) Graphite | (a) Lubricants(b) Insulator(c) Ornaments |
| Column ‘A’ | Column B’ | Column C |
| (1) Transverse wave | (a) Particles oscillate parallel to direction of propagation | (i) Wave produced in a slinky |
| (2) Longitudinal wave | (b) Particles oscillate perpendicular to direction of propagation | (ii) Frequency less than 20 Hz |
| 3) Ultrasound | (c) Echo formation is heard under particular conditions | (iii) Wave produced in string |
| (4) Infrasound | (d) High frequency waves | (iv) Frequency between 20 Hz to 20000 Hz |
| (5) Audible frequency | (e) Low frequency waves | (v) Frequency greater than 20000 Hz |