Science MCQs
Science MCQs cover physics, chemistry, and biology basics, ideal for SSC, HSSC, and job exams. They enhance understanding of scientific concepts, laws, anatomy, and problem-solving skills essential for competitive and academic success.
Q: Protein found in hair and nails
A) Hemoglobin
B) Myosin
C) Elastin
D) Keratin
✅ Correct Answer: D
Explanation: Keratin is a tough, fibrous protein that strengthens hair and nails.
Q: Most reactive group of metals
A) Transition
B) Alkali
C) Lanthanides
D) Noble
✅ Correct Answer: B
Explanation: Alkali metals are highly reactive, especially with water.
Q: Energy stored in food
A) Chemical
B) Electrical
C) Nuclear
D) Mechanical
✅ Correct Answer: A
Explanation: Food contains chemical energy, released during digestion.
Q: Deficiency of Vitamin A affects
A) Vision
B) Teeth
C) Skin
D) Bones
✅ Correct Answer: A
Explanation: Vitamin A deficiency can cause vision problems including night blindness.
Q: Location of digestion initiation
A) Small intestine
B) Stomach
C) Liver
D) Mouth
✅ Correct Answer: D
Explanation: Digestion begins in the mouth with enzymes like amylase.