JKSSBGENERAL SCIENCE MOCK TEST – 1
(Latest JKSSB Pattern | 20 MCQs | Moderate to High Level)
Time: 20 Minutes
Maximum Marks: 20
1. If the distance between two masses is doubled, the gravitational force becomes:
A) Double
B) Four times
C) Half
D) One-fourth
2. Match the following Organic Acids with their corresponding sources.
| Organic Acid | Source |
|---|---|
| i. Oxalic acid | a. Dark chocolate |
| ii. Acetic acid | b. Ant sting |
| iii. Ascorbic acid | c. Apples |
| iv. Methanoic acid | d. Guava, Amla |
| v. Malic acid | e. Vinegar |
Choose the correct option:
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
3. Identify the correct source of energy based on the following statements.
I. It is a non-renewable but low-carbon energy source.
II. It is a reliable source of energy but poses challenges related to radioactive waste disposal.
III. A huge amount of energy is released through nuclear fission.
A) Compressed Natural Gas
B) Petroleum Products
C) Fossil Fuels
D) Nuclear Fuels
4. Which of the following statements is NOT related to Ocean Energy?
A) Ocean Thermal Energy Conversion (OTEC) generates electricity using the temperature difference between warm surface seawater and cold deep seawater.
B) Tidal barrage systems use dams across estuaries to generate electricity from tidal flow.
C) Tidal stream systems use underwater turbines to harness tidal currents.
D) Wave energy systems convert ocean wave motion into electrical energy.
5. Which of the following non-metals exists in the liquid state at room temperature?
A) Sulphur
B) Bromine
C) Phosphorus
D) Iodine
6. Which of the following statements are correct regarding metals?
I. They generally form basic oxides.
II. They are good reducing agents.
III. They have high electronegativity.
IV. They have high ionization energy.
Choose the correct option.
A) Only I and II
B) Only III and IV
C) Only I, II and IV
D) Only II, III and IV
7. Which gas is produced when calcium reacts with water?
A) Hydrogen
B) Oxygen
C) Carbon dioxide
D) Nitrogen
8. What happens when magnesium sulphate solution is added to copper metal?
A) Copper displaces magnesium forming copper sulphate.
B) Magnesium displaces copper forming magnesium sulphate.
C) Hydrogen gas is evolved.
D) No reaction occurs.
9. Arrange the following metals in decreasing order of reactivity.
I. Gold
II. Calcium
III. Silver
IV. Cobalt
V. Magnesium
VI. Nickel
VII. Platinum
VIII. Lithium
A) I > II > III > IV > V > VI > VII > VIII
B) VIII > II > V > IV > VI > III > I > VII
C) VIII > V > II > IV > VI > I > III > VII
D) VIII > VII > III > IV > VI > V > II > I
10. Which of the following ore–metal pairs is correctly matched?
A) Iron pyrites (FeS₂) — Iron sulphide ore
B) Hemimorphite — Zinc silicate ore
C) Horn Silver (AgCl) — Silver halide ore
D) Both B and C
11. Which of the following statements regarding extraction of metals are correct?
I. Sodium and potassium are extracted by electrolysis.
II. Zinc and iron are extracted by reduction using carbon.
III. Copper and mercury can be obtained by roasting/heating suitable ores.
A) Only I
B) Only I and II
C) Only II and III
D) I, II and III
12. Which term best describes the mode of nutrition in both yeast and mushrooms?
A) Saprophytic
B) Autotrophic
C) Parasitic
D) Holozoic
13. Which plant structures function as the main gateways for gaseous exchange?
A) Lenticels
B) Stomata
C) Xylem
D) Phloem
14. Which of the following is NOT a part of the nephron?
A) Bowman's capsule
B) Glomerulus
C) Glottis
D) Loop of Henle
15. Which of the following correctly classifies biodegradable and non-biodegradable substances?
A) Biodegradable – Animal bones, Leather; Non-biodegradable – DDT, Mercury, Lead, Silver foil
B) Biodegradable – DDT, Animal bones, Leather; Non-biodegradable – Mercury, Lead, Silver foil
C) Biodegradable – Mercury, Lead; Non-biodegradable – DDT, Silver foil, Leather
D) Biodegradable – DDT, Silver foil, Animal bones; Non-biodegradable – Mercury, Lead, Leather
16. The correct sequence of an aquatic food chain is:
A) Algae → Crab → Sea Urchin → Squid → Dolphin → Tiger Shark
B) Sea Urchin → Algae → Crab → Squid → Tiger Shark → Dolphin
C) Algae → Sea Urchin → Crab → Squid → Dolphin → Tiger Shark
D) Tiger Shark → Dolphin → Squid → Crab → Sea Urchin → Algae
17. Which ozone-depleting substance is correctly matched with its major use?
A) Halons — Soil fumigants
B) Methyl bromide — Degreasing solvent
C) HCFCs — Fire extinguishers
D) CFCs — Refrigerants and aerosol propellants
18. In Mendel's experiments, a recessive trait is:
A) The trait expressed in all F₁ hybrids.
B) The trait hidden in F₁ but reappearing in F₂.
C) The trait that increases every generation.
D) The trait found only in parental plants.
19. Match the following.
| Reproduction | Example |
|---|---|
| i. Vegetative propagation | a. Mosses and liverworts |
| ii. Fragmentation | b. Begonia and Bryophyllum |
| iii. Budding | c. Yeast and Hydra |
| iv. Spore formation | d. Clostridium and Bacillus |
Choose the correct option.
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
20. Which of the following statements are correct regarding vertebrates?
I. Vertebrates possess a vertebral column.
II. They show bilateral symmetry.
III. Fish, amphibians, reptiles, birds and mammals belong to Vertebrata.
A) Only I
B) Only I and II
C) Only I and III
D) I, II and III
ANSWER KEY
| Q. No. | Answer |
|---|---|
| 1 | D |
| 2 | D |
| 3 | D |
| 4 | A (OTEC uses warm surface seawater and cold deep seawater—not warm air.) |
| 5 | B |
| 6 | A |
| 7 | A |
| 8 | D |
| 9 | B |
| 10 | D |
| 11 | D |
| 12 | A |
| 13 | B |
| 14 | C |
| 15 | A |
| 16 | C |
| 17 | D |
| 18 | B |
| 19 | A |
| 20 | D |
Difficulty Level: ★★★★☆ (JKSSB Standard)
This mock test covers conceptual, statement-based, matching, and application-oriented questions in the style commonly seen in competitive examinations like JKSSB.