MDCAT ECAT Chemistry MCQs

Correct answer B. Hydrogen gas

Correct answer C. Lithium

Correct answer B. Fe + Cu²⁺ → Fe²⁺ + Cu

Correct answer D. 1.56 V

Correct answer A. from the anode to the cathode

Correct answer B. Tetrahedral, 109.5°

Correct answer C. Bent (angular)

Correct answer B. Trigonal planar

Correct answer A. Tetrahedral

Correct answer D. Lone pair–lone pair > lone pair–bond pair > bond pair–bond pair

Correct answer D. sp

Correct answer B. sp³

Correct answer A. 33.3%

Correct answer B. No effect on the equilibrium position

Correct answer B. 1.0 × 10⁻⁴ mol dm⁻³

Correct answer B. 7.0 × 10⁻⁷ mol dm⁻³

Correct answer C. The common Cl⁻ ion lowers the solubility of NaCl

Correct answer A. It suppresses the ionisation of NH₄OH, lowering [OH⁻]

Correct answer D. 9.26

Correct answer C. H₂CO₃ / HCO₃⁻