Question
| Column A | Column B | Column C | |||
| (1) | Farsightedness | (a) | Near object can be seen a clearly | (i) | Bifocal lens |
| (2) | Presbyopia | (b) | Far away object can be seen clearly | (ii) | Concave lens |
| (3) | Nearsightedness | (c) | Problem of old age | (iii) | Convex lens |
| Column A | Column B | Column C | |||
| (1) | Farsightedness | (a) | Near object can be seen a clearly | (i) | Bifocal lens |
| (2) | Presbyopia | (b) | Far away object can be seen clearly | (ii) | Concave lens |
| (3) | Nearsightedness | (c) | Problem of old age | (iii) | Convex lens |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column A | Column B |
| (i) Sodium | (a) Non-metal |
| (ii) Sulphur | (b) Lanthanide |
| (iii) Manganese | (c) Metal |
| (iv) Cerium | (d) Transition metal |
| Column A | Column B | ||
| (1) | Protoplasmic grade | (a) | Flat worms |
| (2) | Tissue-organ grade | (b) | Arthropoda |
| (3) | Cell-tissue grade | (c) | Unicellular animals |
| (4) | Organ-system grade | (d) | Cnidarians |
| Column A | Column B |
| (1) Apple | (a) Coffee |
| (2) Grapes | (b) Cocoa |
| (3) Theobroma cacao | (c) Chocolate |
| (4)Caffen arabica ( | (d) Wine |
| (e) Cider |
| Column A | Column B | ||
| (1) | Pisces | (a) | Lungs |
| (2) | Amphibia | (b) | Gills |
| (3) | Aves | (c) | Skin |
| Column A | Column B | ||
| (1) | Humidity | (a) | Mass of water vapour |
| (2) | Absolute humidity | (b) | Moistness or dampness |
| (3) | Relative humidity | (c) | Proportion of vapour content of air |
| Column A | Column B |
| (1) Phenol oxidising bacteria | (a) Prevent leaching of iron, zinc by forming compounds |
| (2) Thiobacilli | (b) Xenobiotic chemicals |
| (3) Pseudomonas spp. | (c) Soil pollution due to acid rain |
| (4) ) Ideonella sakaiensis | (d) Biopesticide |
| (e) Oil spills | |
| (f) PET |
| Reactants | Products | Types of Reaction | |||
| $(1)$ | $BaCl_2(aq) + ZnSO_4 (aq)$ | $(a)$ | $H_2CO_3(aq)$ | $(i)$ | Displacement |
| $(2)$ | $2 AgCl(s)$ | $(b)$ | $FeSO_4(aq) + Cu(s)$ | $(ii)$ | Combination |
| $(3)$ | $CuSO_4 (aq) + Fe(s)$ | $(c)$ | $BaSO_4↓+ ZnCl_2 (aq)$ | $(iii)$ | Decomposition |
| $(4)$ | $H_2O(l) + CO_2(g)$ | $(d)$ | $2Ag(s) + Cl_2(g)$ | $(iv)$ | Double displacement |
| A | B | C |
| (1) M e t h a n e fuel | (i) Yeast Saccharomyces | (a) Bio-photolysis of water |
| (2) Hydrogen fuel | (ii) Microbial anaerobic decomposition | (b) Fermentation of molases |
| (3) Ethanol fuel | (iii) Photoreduction by bacteria | (c) Urban, agricultural, industrial waste. |
| Column $A$ Name of the Compound | Column $B$ Structural Formula | ||
| $(1)$ | Ethyl alcohol | $(a)$ | $CH_3-CH_2-CH_2-CH_3$ |
| $(2)$ | Acetone | $(b)$ | $CH_3-CH_2-CH_2-OH$ |
| $(3)$ | Propionic acid | $(c)$ | ![]() |
| $(4)$ | Ethyne | $(d)$ | ![]() |
| $(5)$ | Propanol | $(e)$ | $CH_3-CH_2OH$ |
| $(6)$ | Butane | $(f)$ | $HC=CH$ |
| Place | Altitude from the Earth’s surface (km) | g$\left( m / s ^2\right)$ |
| (i) Surface of Earth | 0 | |
| (ii) Mount Everest | 8.8 | |
| (iii) Altitude attained by Man-made balloon | 36.6 | |
| (iv) Orbit of space shuttle | 400 | |
| (V) Communication satellite | 35700 |