Question
| 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’ |
| 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 |
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| Column ‘A’ | Column ‘B’ |
| (1) X-rays | (a) GMRT |
| (2) Optical telescope | (b) ISRO |
| (3) Indian radio telescope | (c) Hubble |
| (4) Launching artificial-satellite | (d) Chandra |
| 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) Leprosy | (a) Virus |
| (2) Ringworm | (b) Fungi |
| (3) Influenza | (c) Protozoa |
| (4) Malaria | (d) Bacteria |
| Column ‘A’ | Column ‘B’ |
| (1) Gibberellins | (a) Enlargement of cells |
| (2) Cytokinins | (b) Helps in stem elogation |
| (3) Abscisic acid | (c) Cell division |
| (4) Auxin | (d) Wilting of leaf |
| 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) Harmful waste | (a) Glass, rubber, carry bags, etc. |
| (2) Domestic waste | (b) Chemicals, pigments, ash, etc. |
| (3) Biomedical waste | (c) Radioactive material |
| (4) Industrial waste | (d) Left over food, vegetables, peelings |
| (5) Urban waste | (e) Bandages, cotton, needles, etc. |
| Column ‘A’ | Column ‘B’ |
| (1) Fullerene(2) Diamond(3) Graphite | (a) Lubricants(b) Insulator(c) Ornaments |
| 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’ |
| Example | Atomic radius (in metres) |
| (1) Water molecule (2) Haemoglobin molecule (3) Hydrogen atom |
(a) $10^{-10}$ (b) $10^{-9}$ (c) $10^{-8}$ |