Question Bank — General Science (all papers)
🔬 Question Bank — General Science
Every General Science question from the 5 JKSSB 2026 papers that had a science block (56 Qs), grouped by topic. Columns: Source · Question · Options · Answer · Explanation.
Sources: WG Q86–90 · IN Q41–60 · GD Q102–106 · LA Q81–100 · SF Q109–118 (science items). ⬆ Home · 🗺️ _MOC-General-Science · 🎯 FAA prediction
Self-test
Read the Question + Options; cover Ans / Explanation and reveal to check. Class-X NCERT level.
1. Physics — Motion, Gravitation & Heat Transfer
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| LA · Q81 | If the distance between two masses is doubled, the gravitational force becomes: | A) Double B) Four times C) Half D) One-fourth | D | F ∝ 1/d² → becomes ¼ |
| GD · Q106 | Which law: a moving body continues in motion unless acted upon by a force? | A) Newton's First Law B) Newton's Second Law C) Newton's Third Law D) Archimedes' Principle | A | Law of inertia (Newton's First Law) |
| IN · Q41 | Orbital speed of a satellite where g = 4.9 m/s² (R = 6371 km)? | A) 4.6 km/s B) 6.6 km/s C) 9.8 km/s D) 11.2 km/s | B | g=4.9 → orbit radius = R√2; v = √(g′·(R+h)) ≈ 6.6 km/s |
| IN · Q42 | Heat transfer — metal rod heated at one end vs sealed water flask over a flame? | A) Rod: Convection; Flask: Conduction+Radiation B) Rod: Conduction; Flask: Convection+Radiation C) Rod: Conduction; Flask: Convection D) Rod: Radiation; Flask: Convection | B | Solid rod → conduction; water → convection (+ radiation from flame) |
2. Physics — Light & Optics
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| IN · Q43 | Object 2 m tall, 50 cm from a convex lens of power +5 D — image height & nature? | A) 1 m, virtual & erect B) 1.33 m, real & inverted C) 1.5 m, real & inverted D) 1.6 m, virtual & erect | B | f=20 cm; v=33.3 cm; m=−0.67 → 1.33 m, real, inverted |
| WG · Q86 | Why a convex mirror as a rear-view mirror? I) erect & diminished image II) wider field of view (curved outward) III) forms a real image | A) II only B) I and II only C) I and III only D) I, II and III | B | Convex mirror gives erect, diminished, virtual image + wide view; III (real) wrong |
| SF · Q118 | Concave mirror, object at the focus: I) image at infinity II) image highly enlarged III) image virtual & erect | A) I only B) I and II only C) II and III only D) I, II and III | B | Image at infinity, highly enlarged & real (not virtual) → I & II |
3. Chemistry — Metals, Non-metals & Reactivity
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| LA · Q85 | Which non-metal is liquid at room temperature? | A) Sulphur B) Bromine C) Phosphorus D) Iodine | B | Bromine (mercury is a liquid metal) |
| GD · Q104 | Which is a liquid non-metal at room temperature? | A) Mercury B) Phosphorus C) Chlorine D) Bromine | D | Bromine (mercury = liquid metal) |
| LA · Q86 | Correct about metals? I) form basic oxides II) good reducing agents III) high electronegativity IV) high ionization energy | A) Only I, II B) Only III and IV C) Only I, II and IV D) Only II, III and IV | A | Metals form basic oxides & are reducing agents; low EN/IE → III, IV false |
| IN · Q48 | Match: i) Cesium ii) Zinc iii) Iodine iv) Graphite → a) lustrous non-metal b) brittle metal c) low-melting metal d) non-metal that conducts | A) i-c,ii-b,iii-a,iv-d B) i-b,ii-c,iii-a,iv-d C) i-b,ii-c,iii-d,iv-a D) i-c,ii-b,iii-d,iv-a | A | Cesium–low-melting metal; Zinc–brittle; Iodine–lustrous non-metal; Graphite–conducting non-metal |
| LA · Q89 | Arrange in decreasing reactivity: Gold(I), Calcium(II), Silver(III), Cobalt(IV), Magnesium(V), Nickel(VI), Platinum(VII), Lithium(VIII) | A) I<II<III<IV<V<VI<VII<VIII B) VIII>II>V>IV>VI>III>VII>I C) VIII<V<II<IV<VI<I<III<VII D) VIII<VII<III<IV<VI<V<II<I | B | Li > Ca > Mg > Co > Ni > Ag > Pt > Au |
| LA · Q87 | Which gas is produced when water reacts with calcium? | A) Hydrogen B) Oxygen C) Carbon dioxide D) Nitrogen | A | Ca + 2H₂O → Ca(OH)₂ + H₂ |
| LA · Q88 | What happens when magnesium sulphate solution is added to copper metal? | A) Cu displaces Mg → copper sulphate B) Mg displaces Cu → magnesium sulphate C) Hydrogen gas evolved D) No reaction occurs | D | Cu is less reactive than Mg → cannot displace it |
| IN · Q49 | Extraction: P (reacts vigorously with water), Q (reacts slowly with acids), R (unreactive) | A) P-electrolysis; Q-carbon; R-carbon B) P-carbon; Q-electrolysis; R-electrolysis C) P-electrolysis; Q-carbon; R-native metal D) P-carbon; Q-native; R-electrolysis | C | Very reactive→electrolysis; moderate→carbon reduction; unreactive→native |
| LA · Q91 | Extraction by activity series: I) Na/K → electrolysis II) Zn/Fe/Pb → carbon reduction III) Cu/Hg → heating ores | A) Only II B) Only I and III C) Only II and III D) All of the above | D | All three are correct |
| LA · Q90 | Which ore–metal pair is correct? | A) Sulphate ore–Iron (pyrites, FeS) B) Oxide ore–Zinc (Hemimorphite) C) Halide ore–Silver (Horn silver, AgCl) D) Silicate ore–Lead (Anglesite, PbSO₄) | C | Horn silver (AgCl) is a halide ore of silver |
| IN · Q45 | Which metal(s) give hydrogen with dilute nitric acid? | A) Copper B) Zinc C) Magnesium D) All of the above | C | HNO₃ is oxidising (no H₂ usually), but very dilute HNO₃ with Mg gives H₂ |
4. Chemistry — Acids, Bases, Oxides & Changes
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| WG · Q88 | Acids & Bases — which statements are INCORRECT? I) both conduct electricity (ions) II) antacids are weak bases III) acidic solutions turn red litmus blue IV) phenolphthalein pink in base V) tooth decay starts above pH 8.5 | A) II and IV only B) III and V only C) I, II and IV only D) II, III and V only | B | Acids turn blue litmus red (III wrong); tooth decay starts below pH 5.5 (V wrong) |
| SF · Q116 | Which are INCORRECT? I) metal oxides are acidic II) non-metal oxides are basic | A) I only B) II only C) Both I and II D) Neither | C | Metal oxides are basic, non-metal oxides acidic → both wrong |
| GD · Q105 | Which are physical changes? I) Melting of ice II) Cooking food III) Burning of paper IV) Rusting of iron | A) I only B) I and II only C) I, II and III only D) All | A | Only melting is physical; cooking/burning/rusting are chemical |
| LA · Q82 | Match organic acids → sources: i) Oxalic ii) Acetic iii) Ascorbic iv) Methanoic v) Malic → a) dark chocolate b) ant sting c) apples d) guava/amla e) vinegar | A) i-a,ii-b,iii-c,iv-d,v-e B) i-e,ii-c,iii-d,iv-a,v-b C) i-b,ii-a,iii-e,iv-c,v-d D) i-a,ii-e,iii-d,iv-b,v-c | D | Oxalic–dark chocolate; Acetic–vinegar; Ascorbic–guava/amla; Methanoic–ant sting; Malic–apples |
5. Energy Sources
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| IN · Q46 | True about conventional energy improvements? | A) Thermal plants can't exceed 35% efficiency B) Supercritical & ultra-supercritical boilers allow higher coal-plant efficiency C) Hydro plants can't improve once the dam is built D) Refining efficiency depends only on crude quality | B | Advanced boilers raise coal-plant efficiency |
| IN · Q47 | Correct about non-conventional energy? | A) Solar panels convert only 10–12% B) Wind efficiency improves with larger, aerodynamic blades C) Tidal energy can't be harnessed (too predictable) D) Geothermal output is independent of drilling tech | B | Larger, better-designed rotor blades capture more wind |
| LA · Q83 | Identify the energy source: I) non-renewable but low-carbon II) reliable but radioactive-waste/safety concerns III) huge energy via fission | A) Compressed Natural Gas B) Petroleum Products C) Fossil Fuels D) Nuclear Fuels | D | Fission-based, low-carbon, waste concerns → nuclear |
| LA · Q84 | Which statement is NOT related to Ocean Energy? | A) OTEC uses the temp difference between warm air above the sea and cold ocean water B) Tidal barrage systems C) Tidal stream systems D) Wave energy systems | A | OTEC uses warm surface water, not air → A wrong |
6. Biology — Cells, Nutrition, Transport & Excretion
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| IN · Q44 | Which statement about cells is NOT true? | A) Plasma membrane is selectively permeable B) Interior has many membrane-bound organelles C) Mitochondria handle energy transactions D) Ribosomes are membrane-bound organelles for protein synthesis | D | Ribosomes are not membrane-bound |
| IN · Q51 | Transport in plants — which is NOT correct? | A) Ascent of sap by transpiration pull/cohesion/adhesion B) Xylem upward; phloem both ways C) Phloem needs metabolic energy; xylem largely passive D) Minerals move through phloem to leaves for photosynthesis | D | Minerals move up through the xylem, not phloem |
| IN · Q52 | Excretion in plants & animals — which is correct? | A) Plants remove all waste via stomata B) Plants assimilate ammonia into amino acids; store waste in leaves/bark/vacuoles C) Mammals' main N-waste is uric acid (minimal water) D) Both rely mainly on transpiration | B | Correct description of plant N-handling & waste storage |
| IN · Q50 | Which organism exhibits parasitic nutrition? | A) Nitrosomonas B) Amoeba C) Plasmodium D) Paramecium | C | Plasmodium (malarial parasite) |
| LA · Q92 | Mode of nutrition in both yeast and mushrooms? | A) Saprophytic B) Autotrophic C) Parasitic D) Holozoic | A | Both feed on dead organic matter |
| LA · Q93 | Plant structures that are gateways for gas exchange? | A) Lenticels B) Stomata C) Xylem D) Phloem | B | Stomata are the main gas-exchange gateways |
| LA · Q94 | Which term is NOT related to the kidney's structural/functional unit? | A) Nephrons B) Bowman's capsule C) Glottis D) Glomerulus | C | Glottis is part of the respiratory tract |
| GD · Q103 | Which salivary enzyme digests starch? | A) Pepsin B) Amylase C) Trypsin D) Lipase | B | Salivary amylase breaks starch into sugars |
| WG · Q87 | Match glands → functions: i) Hypothalamus ii) Thymus iii) Thyroid iv) Pineal → a) metabolism b) sleep c) trains T-cells d) controls pituitary | A) i-d,ii-a,iii-b,iv-c B) i-d,ii-a,iii-c,iv-b C) i-d,ii-c,iii-a,iv-b D) i-d,ii-b,iii-a,iv-c | C | Hypothalamus–pituitary; Thymus–T-cells; Thyroid–metabolism; Pineal–sleep |
| SF · Q117 | Match fish culture → example: i) Surface Feeders ii) Column Feeders iii) Bottom Feeders → a) Silver Carp b) Grass Carp c) Common Carp | A) i-b,ii-c,iii-a B) i-a,ii-c,iii-b C) i-a,ii-b,iii-c D) i-b,ii-a,iii-c | B | Per key (standard biology: Surface–Silver, Column–Grass, Bottom–Common = option C) |
7. Biology — Genetics & Reproduction
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| IN · Q56 | Which was NOT a character studied by Mendel in Pisum sativum? | A) Stem Height B) Flower shape C) Pod shape and colour D) Seed shape and colour | B | Mendel studied flower colour/position, not shape |
| IN · Q57 | Offspring: all Tall, seed 3:1 (Round:Wrinkled). How many unordered parental genotype combinations? | A) 1 B) 2 C) 3 D) 4 | C | "All tall" → 3 height combos; 3:1 seed fixes Rr×Rr → 3 |
| IN · Q58 | Haploid/diploid during plant sexual reproduction — correct? | A) micro/megaspore diploid; zygote haploid B) micro/megaspore haploid after meiosis; fertilization restores diploid C) pollen/ovule mother cells haploid before meiosis D) mother cells diploid; fertilization doesn't restore diploid | B | Correct ploidy sequence |
| IN · Q59 | Budding vs Fragmentation — best distinction? | A) Budding: protrusion may stay attached before detaching; Fragmentation: parent breaks into pieces that each grow B) …specialized cells vs stress C) …detaches vs splits D) …stays attached vs breaks in two | A | Correctly distinguishes the two |
| LA · Q98 | In Mendel's experiments, the recessive trait is: | A) Appears in all F₁ hybrids B) Hides in F₁ but reappears in F₂ C) Increases each generation D) Only in the parental generation | B | Recessive hides in F₁, reappears in F₂ |
| LA · Q99 | Match asexual reproduction → example: i) Vegetative propagation ii) Fragmentation iii) Budding iv) Spore formation → a) Mosses/liverworts b) Begonia/Bryophyllum c) Yeast/Hydra d) Clostridium/Bacillus | A) i-b,ii-a,iii-c,iv-d B) i-a,ii-b,iii-d,iv-c C) i-c,ii-d,iii-a,iv-b D) i-d,ii-c,iii-b,iv-a | A | Vegetative–Begonia/Bryophyllum; Fragmentation–mosses; Budding–Yeast/Hydra; Spore–Clostridium/Bacillus |
| SF · Q115 | By-products of anaerobic respiration? I) Alcohol II) CO₂ III) Water IV) Energy V) Lactic Acid | A) All B) I, III, IV and V only C) I, II and V only D) I, II, IV and V only | D | Alcohol, CO₂, energy, lactic acid — not water |
8. Biology — Classification
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| GD · Q102 | Match organisms → kingdom: 1) Amoeba 2) Hyphae 3) Cyanobacteria → i) Protista ii) Fungi iii) Monera | A) 1-i,2-ii,3-iii B) 1-ii,2-iii,3-i C) 1-iii,2-i,3-ii D) 1-iii,2-ii,3-i | A | Amoeba–Protista; Hyphae–Fungi; Cyanobacteria–Monera |
| LA · Q100 | Correct about Vertebrates? I) chordate subphylum with backbone II) bilateral symmetry III) fish→amphibians→reptiles→birds→mammals | A) Only I B) Only I and II C) Only I and III D) All of the above | D | All three statements are correct |
| IN · Q60 | Which organism–classification pair is correct? I) Rose–Monocot II) Frog–Amphibian III) Mango–Gymnosperm IV) Shark–Reptile | A) Only II B) Only I and II C) Only II and IV D) All | A | Only Frog–Amphibian (Rose=dicot, Mango=angiosperm, Shark=fish) |
9. Ecology, Environment, Health & Applied Science
| Source | Question | Options | Ans | Explanation |
|---|---|---|---|---|
| IN · Q53 | Pair causes→pollutants: i) fish bioaccumulation, neurological ii) acid-rain gas iii) toxic soil heavy metal → a) Mercury b) Sulfur dioxide c) Lead | A) i→a, ii→b, iii→c B) i→a, ii→c, iii→b C) i→b, ii→c, iii→a D) i→c, ii→b, iii→a | A | Neurotoxic bioaccumulation→Mercury; acid rain→SO₂; soil metal→Lead |
| IN · Q54 | Food chain (Grass→Grasshopper→Frog→Snake→Hawk). If frog = x kJ, energy to the primary consumer? | A) 10x kJ B) x kJ C) x/10 kJ D) x/100 kJ | A | Grasshopper is one trophic level below the frog → 10× (10% law) |
| IN · Q55 | TRUE about ozone depletion & climate change? | A) CFCs destroy ozone and contribute to global warming B) Ozone depletion directly causes the greenhouse effect C) Greenhouse gases directly destroy ozone D) Cutting CO₂ alone fully restores ozone | A | CFCs deplete ozone and act as greenhouse gases |
| LA · Q96 | Correct sequence of an aquatic food chain? | A) Algae→Crab→Sea urchins→Squid→Dolphin→Shark B) Sea urchins→Algae→Crab→Squid→Shark→Dolphin C) Algae→Sea urchins→Crab→Squid→Spotted dolphin→Tiger shark D) Tiger shark→Dolphin→Squid→Crab→Sea urchins→Algae | C | Producer (algae) → … → top predator (tiger shark) |
| LA · Q97 | Ozone-depleting substance correctly matched with source? | A) Halons–Soil fumigant B) Methyl bromide–Degreasing solvent C) HCFCs–Fire extinguishers D) CFCs–Refrigerants and aerosol propellants | D | CFCs = refrigerants/aerosol propellants |
| LA · Q95 | Classify biodegradable / non-biodegradable: | A) Bio: animal bones, leather; Non-bio: DDT, mercury, lead, silver foils B) Bio: DDT, animal bones, leather; … C) Bio: mercury, lead; … D) Bio: DDT, silver foils, animal bones; … | A | Animal bones & leather are biodegradable; DDT/mercury/lead/silver foils are not |
| WG · Q89 | "Greywater" primarily refers to wastewater from: | A) Rooftop rainwater B) Industrial effluents C) Bathrooms, kitchens & laundry (excluding toilets) D) Treated sewage for reuse | C | Household wastewater minus toilet (black) water |
| WG · Q90 | Under UIP, which vaccine is given strictly at birth against tuberculosis? | A) OPV B) Rotavirus C) HPV D) BCG (Bacillus Calmette-Guérin) | D | BCG is given at birth against TB |
| SF · Q109 | Which are bacterial diseases? I) Tuberculosis II) Cholera III) Hepatitis IV) Leprosy V) Measles VI) Yellow Fever | A) I, II and V only B) I, II and IV only C) I, II, IV and VI only D) I, II, IV, V and VI only | B | TB, Cholera, Leprosy = bacterial; Hepatitis/Measles/Yellow Fever = viral |
| SF · Q114 | Arrange the wool-processing steps: I) Scouring II) Sorting III) Shearing IV) Rolling V) Cleaning | A) I-III-II-IV-V B) I-III-II-V-IV C) III-I-II-V-IV D) III-I-II-IV-V | C | Shearing → Scouring → Sorting → Cleaning → Rolling |
📊 Topic distribution
| Topic | Count |
|---|---|
| Physics — Motion, Gravitation & Heat | 4 |
| Physics — Light & Optics | 3 |
| Chemistry — Metals, Non-metals & Reactivity | 11 |
| Chemistry — Acids, Bases, Oxides & Changes | 4 |
| Energy Sources | 4 |
| Biology — Cells, Nutrition, Transport & Excretion | 10 |
| Biology — Genetics & Reproduction | 7 |
| Biology — Classification | 3 |
| Ecology, Environment, Health & Applied | 10 |
| Total | 56 |
For FAA
Chemistry of metals dominates (11) — reactivity series, extraction, ores, and the recurring "liquid non-metal = Bromine" (asked twice). Biology (life processes + genetics + classification = 20) is the next-strongest. FAA adds vitamins & deficiency diseases and communicable/non-communicable diseases — revise those too. Note SF·Q117 (fish feeders) is a debatable key.
