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Browse the question list for SSC CGL.
20 questions · Page 1 of 2
Question 1
Open questionAccording to Boyle’s Law, the product of pressure and volume of a gas at constant temperature is?
A: Zero
B: Constant
C: Inversely proportional to T
D: Infinite
Correct Answer: B — B: Constant
Boyle’s law: (at constant T).
Question 2
Open questionA convex lens of focal length 20 cm forms an image at 40 cm from the lens. What is the object distance?
A: 30 cm
B: 40 cm
C: 60 cm
D: 20 cm
Correct Answer: C — C: 60 cm
Using lens formula: , solve for u.
Question 3
Open questionDeficiency of Vitamin D causes which disease?
A: Scurvy
B: Rickets
C: Night blindness
D: Beriberi
Correct Answer: B — B: Rickets
Lack of Vitamin D leads to rickets in children.
Question 4
Open questionThe direction of a magnetic field around a current-carrying conductor is given by?
A: Left-hand rule
B: Right-hand thumb rule
C: Fleming’s left-hand rule
D: None of these
Correct Answer: B — B: Right-hand thumb rule
Right-hand thumb rule determines the field direction.
Question 5
Open questionWhich of the following is a non-metal?
A: Iron
B: Copper
C: Sulphur
D: Aluminium
Correct Answer: C — C: Sulphur
Sulphur (S) is a non-metal.
Question 6
Open questionWhich gas is released during photosynthesis?
A: Carbon dioxide
B: Oxygen
C: Nitrogen
D: Hydrogen
Correct Answer: B — B: Oxygen
Photosynthesis releases oxygen (O₂).
Question 7
Open questionWhat is the freezing point of water in Celsius?
A: 0°C
B: 32°C
C: 100°C
D: -273°C
Correct Answer: A — A: 0°C
Water freezes at 0°C.
Question 8
Open questionA solution with pH = 7 is considered?
A: Acidic
B: Basic
C: Neutral
D: Strongly basic
Correct Answer: C — C: Neutral
pH 7 represents a neutral solution like pure water.
Question 9
Open questionWhat physical quantity is measured in decibels (dB)?
A: Frequency
B: Sound intensity
C: Wavelength
D: Speed
Correct Answer: B — B: Sound intensity
Sound intensity (loudness) is measured in decibels.
Question 10
Open questionWhich enzyme is responsible for the digestion of proteins in the stomach?
A: Amylase
B: Lipase
C: Pepsin
D: Trypsin
Correct Answer: C — C: Pepsin
Pepsin breaks down proteins into smaller peptides.
Question 11
Open questionWhat type of bond is formed between sodium (Na) and chlorine (Cl) in NaCl?
A: Covalent bond
B: Metallic bond
C: Ionic bond ✓
D: Hydrogen bond
Correct Answer: C — C: Ionic bond ✓
Na donates an electron to Cl, forming an ionic bond.
Question 12
Open questionAccording to Ohm’s Law, what is the relationship between voltage (V), current (I), and resistance (R)?
A: V = I/R
B: V = IR ✓
C: V = R/I
D: V = I + R
Correct Answer: B — B: V = IR ✓
Formula:
Question 13
Open questionWhich organelle is known as the powerhouse of the cell?
A: Nucleus
B: Mitochondria ✓
C: Ribosome
D: Lysosome
Correct Answer: B — B: Mitochondria ✓
Mitochondria are called the powerhouse of the cell because they generate ATP energy.
Question 14
Open questionWhich group in the periodic table is known as the alkali metals?
A: Group 2
B: Group 1 ✓
C: Group 17
D: Group 18
Correct Answer: B — B: Group 1 ✓
Group 1 elements (Li, Na, K, Rb, Cs, Fr) are called alkali metals.
Question 15
Open questionState Newton’s First Law of Motion with an example.
A: Motion changes without any force
B: Rest and motion continue until an external force acts ✓
C: Only valid for planets
D: Only applies in vacuum
Correct Answer: B — B: Rest and motion continue until an external force acts ✓
Law of Inertia: A body remains at rest or in uniform motion unless acted upon by an external force.
