SSC GD General Science Part 1, 2026

Topic: General Science

1. Which symbiotic bacterium is responsible for nitrogen fixation in leguminous plants?

• A) Azotobacter
• B) Rhizobium
• C) Nitrosomonas
• D) Rhizopus

B) Rhizobium

2. Graphene is an:

• A) Alloy of carbon
• B) Allotrope of carbon
• C) Compound of carbon
• D) Isotope of carbon

B) Allotrope of carbon

3. Which of the following is richest in Vitamin C?

• A) Soy milk
• B) Apple
• C) Carrot
• D) Amla

D) Amla (Gooseberry)

4. Who discovered the electron?

• A) J.J. Thomson
• B) Ernest Rutherford
• C) James Chadwick
• D) John Dalton

A) J.J. Thomson

5. The SI unit of pressure is named after which scientist?

• A) Isaac Newton
• B) Blaise Pascal
• C) James Watt
• D) Blaise Curie

B) Blaise Pascal

6. Besides the nucleus, which cell organelle contains its own DNA?

• A) Golgi apparatus
• B) Mitochondria
• C) Ribosome
• D) Lysosome

B) Mitochondria

7. The presence of excess of which element in drinking water is responsible for skin cancer?

• A) Arsenic
• B) Iron
• C) Chlorine
• D) Fluorine

A) Arsenic

8. What is the SI unit of power of a lens?

• A) Meter
• B) Diopter
• C) Watt
• D) Lumen

B) Diopter

9. Which Indian scientist is associated with the invention of the Crescograph?

• A) C.V. Raman
• B) Satyendra Nath Bose
• C) Meghnad Saha
• D) Jagadish Chandra Bose

D) Jagadish Chandra Bose

10. Autotrophic mode of nutrition requires:

• A) Chlorophyll and sunlight
• B) Water and carbon dioxide
• C) Oxygen
• D) Both A and B

D) Both A and B

11. Which of the following does NOT belong to the ape (Vanar) category?

• A) Gibbon
• B) Orangutan
• C) Gorilla
• D) Langur

D) Langur

12. Which hormone has a stimulating effect on the heart rate?

• A) Estrone
• B) Erythropoietin
• C) Thyroxine
• D) Epinephrine

D) Epinephrine

13. Which cells in the human body do NOT undergo cell division after birth?

• A) Epithelial cells
• B) Nerve cells
• C) Liver cells
• D) Bone cells

B) Nerve cells (Neurons)

14. Which plant hormone is known as the "stress hormone" of plants?

• A) Auxin
• B) Gibberellin
• C) Cytokinin
• D) Abscisic acid

D) Abscisic acid

15. Milk is a poor source of which element?

• A) Calcium
• B) Protein
• C) Iron
• D) Carbohydrate

C) Iron

16. Which metal is used in fireworks to produce a brilliant white light?

• A) Sodium
• B) Magnesium
• C) Strontium
• D) Barium

B) Magnesium

17. Which odorant agent is added to domestic LPG cylinders to detect gas leaks?

• A) Methane
• B) Thioethanol / Ethyl mercaptan
• C) Chloroform
• D) Ether

B) Thioethanol / Ethyl mercaptan

18. Carnallite is an important ore of which metal?

• A) Calcium
• B) Magnesium
• C) Aluminum
• D) Iron

B) Magnesium

19. When a bucket of water is pulled up from a well, it feels heavier:

• A) Inside the water
• B) Above the surface of the water
• C) Outside the well
• D) At the bottom of the well

B) Above the surface of the water