Questions (120)
Q1GEO2024
Which one of the following sources contains tartaric acid ?
- A Lemon juice
- B Orange juice
- C Tamarind paste ✓
- D Vinegar
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
Q2GEO2024
Which one among the following statements regarding acids and bases is not correct ?
- A A conjugate base of a strong acid is a weak base.
- B In aqueous solution, the hydroxide ion is hydrated to give several ionic species like H3O2^-, H5O3^+ and H7O4^+ etc.
- C AlCl3 is an electron deficient compound, and can act as a Lewis base. ✓
- D Fluoride ion acts as a Lewis base as it can donate any one of its four electron lone pairs.
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
Q3GEO2024
Which one of the following experiments explains the wave nature of electromagnetic radiation ?
- A Black-body radiation
- B Photoelectric effect
- C Rutherford's scattering experiment
- D Diffraction of light ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
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