Biology MCQs || Most repeated Science MCQs PPSC, FPSC

#Biological____Science💖

1.What is the chemical name of Vitamin E?
🅰️Alpha-tocopherol

2. Which Vitamin is additionally referred to as retinol?

🅰️Vitamin A

3. what’s Calciferol?
🅰️Vitamin D

4. what’s the opposite name of thiamine?
🅰️Vitamin B1

5. Which Vitamin is named niacin?
🅰️Vitamin B3

6. Which element is excreted through human sweat?
🅰️Sulfur

7. Pollution of water bodies by which element causes Minamata disease?
🅰️Mercury

8. Accumulation of which chemical results in kidney stones?
🅰️Calcium Oxalate

9. Which heavy metal causes Itai Itai disease?
🅰️Cadmium

10. Which chemical was used earlier for giving anesthesia to patients?
🅰️Diethyl ether

11. Who is honored as Father of recent Chemistry?
🅰️Antoine Lavoisier

12. Who invented the periodic table?
🅰️Dmitri Mendeleev

13. Which is that the most abundant gas within the earth’s atmosphere?
🅰️Nitrogen (78.08%)

14. Which gas evolved from paddy fields and marshes?
🅰️Methane

15. Which toxic element present in automobile exhausts?
🅰️Lead

16. Which gases cause acid rain?
🅰️Sulfur dioxide, Nitrogen oxides

17. Which metal is employed within the making of microchips?
🅰️Silicon

18. what’s the toxicity caused by silicon called?
🅰️Silicosis

19. Which polymer is employed to manufacture electric switches, computer disks, etc.?
🅰️Bakelite

20. With which polymer, the cupboards of radio and television made of?
🅰️Polystyrene

21. Which chemical is employed to form raincoats?
🅰️Poly Vinyl Chloride(PVC)

22. which sort of plastics is often recycled?
🅰️Thermoplastics

23. what’s the name given to plastics that can’t be recycled?
🅰️Thermosetting plastics

24. Which element may be a liquid at ordinary temperature?
🅰️Mercury

25. what’s the chemical name of baking soda?
🅰️Sodium bicarbonate
26. what’s washing soda commonly known as?

🅰️Washing soda or sodium carbonate

27. what’s sodium chloride?
🅰️Table salt

28 what’s table sugar?
🅰️Cane sugar (Sucrose)

29. what’s the element present on lead pencils?
🅰️Carbon (graphite)

30. Which gas is found in soda water?
🅰️Co2