Timed Challenge - Answer & Submit | GK Mania

1 What is the self-inductance unit?

A) Weber (Wb)

B) Henry (H)

C) Farad (F)

D) Ohm (Ω)

2 What is the phase difference between current and voltage in a pure inductor?

A) Current leads by 90°

B) Current lags voltage by 90°

C) In phase

D) 180° out of phase

3 What is the stopping potential in photoelectric effect?

A) V₀ = (hf − φ)/e

B) V₀ = e/hf

C) V₀ = hf/e

D) V₀ = φ/e

4 What is the common name for NaHCO₃?

A) Bleach

B) Table salt

C) Baking soda

D) Vinegar

5 What is the product of reaction of ethanol with acetic acid in presence of H₂SO₄?

A) Acetaldehyde

B) Ethyl acetate (ester)

C) Ethylene

D) Diethyl ether

6 What is the Taylor series of cos(x)?

A) 1 − x²/2! + x⁴/4! − ...

B) 1 + x + x²

C) x − x³/3! + x⁵/5!

D) eˣ

7 What is the product of Kolbe reaction?

A) Methanol

B) Salicylic acid (phenol + CO₂ + NaOH)

C) Aspirin

D) Ethanol

8 What phenomenon explains why sky appears blue?

A) Diffraction

B) Reflection

C) Rayleigh scattering

D) Refraction

9 What is the shape of sp³ hybridized orbitals?

A) Linear

B) Octahedral

C) Tetrahedral

D) Trigonal planar

10 What powers the Sun's energy output?

A) Chemical burn

B) Nuclear fusion

C) Gravitational pull

D) Nuclear fission

Quiz

1 What is the self-inductance unit?

2 What is the phase difference between current and voltage in a pure inductor?

3 What is the stopping potential in photoelectric effect?

4 What is the common name for NaHCO₃?

5 What is the product of reaction of ethanol with acetic acid in presence of H₂SO₄?

6 What is the Taylor series of cos(x)?

7 What is the product of Kolbe reaction?

8 What phenomenon explains why sky appears blue?

9 What is the shape of sp³ hybridized orbitals?

10 What powers the Sun's energy output?

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Quiz

1 What is the self-inductance unit?

2 What is the phase difference between current and voltage in a pure inductor?

3 What is the stopping potential in photoelectric effect?

4 What is the common name for NaHCO₃?

5 What is the product of reaction of ethanol with acetic acid in presence of H₂SO₄?

6 What is the Taylor series of cos(x)?

7 What is the product of Kolbe reaction?

8 What phenomenon explains why sky appears blue?

9 What is the shape of sp³ hybridized orbitals?

10 What powers the Sun's energy output?

Navigator

Quiz Results