General Knowledge

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Q. What is the effect of deforestation on local climate?
  • A. Increased rainfall
  • B. Decreased temperature
  • C. Increased temperature
  • D. No effect
Q. What is the effect of deforestation on river soil quality?
  • A. Improves soil quality
  • B. No effect
  • C. Decreases soil quality
  • D. Increases soil moisture
Q. What is the electron configuration of a chlorine atom (atomic number 17)? (2020)
  • A. 1s² 2s² 2p⁶ 3s² 3p⁵
  • B. 1s² 2s² 2p⁶ 3s² 3p⁶
  • C. 1s² 2s² 2p⁶ 3s² 3p⁴
  • D. 1s² 2s² 2p⁶ 3s² 3d⁵
Q. What is the electron configuration of a neutral carbon atom? (2022)
  • A. 1s² 2s² 2p²
  • B. 1s² 2s² 2p⁶
  • C. 1s² 2s² 2p⁴
  • D. 1s² 2s² 2p³
Q. What is the electron configuration of an oxygen atom? (2021)
  • A. 1s² 2s² 2p⁴
  • B. 1s² 2s² 2p²
  • C. 1s² 2s² 2p⁶
  • D. 1s² 2s² 2p³
Q. What is the empirical formula of a compound with a molecular formula C6H12? (2021)
  • A. CH
  • B. C2H4
  • C. C3H6
  • D. C6H12
Q. What is the empirical formula of a compound with the molecular formula C6H12? (2021)
  • A. CH
  • B. C2H4
  • C. C3H6
  • D. C6H12
Q. What is the energy of a photon with a frequency of 5 x 10^14 Hz? (Planck's constant h = 6.626 x 10^-34 J·s) (2021)
  • A. 3.31 x 10^-19 J
  • B. 1.32 x 10^-19 J
  • C. 2.48 x 10^-19 J
  • D. 4.97 x 10^-19 J
Q. What is the equivalent resistance of two resistors of 4 ohms and 6 ohms connected in series?
  • A. 10 ohms
  • B. 24 ohms
  • C. 2.4 ohms
  • D. 0.67 ohms
Q. What is the equivalent resistance of two resistors of 4 ohms and 6 ohms in series?
  • A. 10 ohms
  • B. 24 ohms
  • C. 2.4 ohms
  • D. 0.67 ohms
Q. What is the equivalent resistance of two resistors, R1 = 4Ω and R2 = 6Ω, in parallel? (2022)
  • A. 2.4Ω
  • B. 10Ω
  • C. 24Ω
  • D. 1.5Ω
Q. What is the equivalent resistance of two resistors, R1 and R2, in parallel? (2022)
  • A. R1 + R2
  • B. R1 * R2 / (R1 + R2)
  • C. 1 / (1/R1 + 1/R2)
  • D. R1 - R2
Q. What is the estimated temperature at the Earth's inner core?
  • A. 4000°C
  • B. 5000°C
  • C. 6000°C
  • D. 7000°C
Q. What is the focal length of a diverging lens if the image distance is -15 cm and the object distance is -10 cm? (2023)
  • A. -30 cm
  • B. -20 cm
  • C. -15 cm
  • D. -10 cm
Q. What is the formula for calculating electric power? (2023)
  • A. P = IV
  • B. P = I^2R
  • C. P = V^2/R
  • D. All of the above
Q. What is the formula for calculating the capacitance of a parallel plate capacitor?
  • A. C = εA/d
  • B. C = A/εd
  • C. C = d/εA
  • D. C = εd/A
Q. What is the formula for calculating the concentration of hydrogen ions in a solution with a pH of 5?
  • A. 1 x 10^-5 M
  • B. 1 x 10^-7 M
  • C. 1 x 10^-9 M
  • D. 1 x 10^-3 M
Q. What is the formula for calculating the concentration of hydrogen ions in a solution from its pH?
  • A. [H+] = 10^-pH
  • B. [H+] = pH/10
  • C. [H+] = 10^pH
  • D. [H+] = pH^10
Q. What is the formula for calculating the normality of a solution?
  • A. N = M x n
  • B. N = M / n
  • C. N = M + n
  • D. N = M - n
Q. What is the formula for calculating the pH of a solution?
  • A. pH = log[H+]
  • B. pH = -log[H+]
  • C. pH = [H+]
  • D. pH = 14 - pOH
Q. What is the formula for calculating the power consumed in an electrical circuit?
  • A. P = IV
  • B. P = I/R
  • C. P = V/R
  • D. P = IR
Q. What is the formula for the capacitance of a parallel plate capacitor?
  • A. C = εA/d
  • B. C = A/εd
  • C. C = d/εA
  • D. C = εd/A
Q. What is the formula for the total capacitance of two capacitors in parallel?
  • A. C_total = C1 + C2
  • B. C_total = C1 * C2
  • C. C_total = C1 / C2
  • D. C_total = C1 - C2
Q. What is the frequency of a sound wave with a wavelength of 2 meters traveling at 340 m/s?
  • A. 170 Hz
  • B. 340 Hz
  • C. 680 Hz
  • D. 3400 Hz
Q. What is the frequency of an AC signal with a period of 0.02 seconds?
  • A. 50 Hz
  • B. 100 Hz
  • C. 25 Hz
  • D. 200 Hz
Q. What is the function of a capacitor in an electric circuit? (2022)
  • A. Store energy
  • B. Increase current
  • C. Decrease voltage
  • D. Convert AC to DC
Q. What is the function of chlorophyll in plants? (2022)
  • A. Absorbing water
  • B. Absorbing sunlight
  • C. Transporting nutrients
  • D. Storing energy
Q. What is the function of chloroplasts in plant cells? (2022)
  • A. Energy production
  • B. Photosynthesis
  • C. Cell division
  • D. Protein synthesis
Q. What is the function of mitochondria in a cell? (2022)
  • A. Photosynthesis
  • B. Energy production
  • C. Protein synthesis
  • D. Cell division
Q. What is the function of phloem in plants?
  • A. Transport of water
  • B. Transport of food
  • C. Photosynthesis
  • D. Storage of nutrients
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