MDCAT ECAT Chemistry MCQs

Correct answer B. 4

Correct answer C. equal amounts of two enantiomers cancel each other's rotations

Correct answer B. the direction in which they rotate plane-polarised light

Correct answer B. Dipole moment

Correct answer B. 2

Correct answer A. Fe²⁺

Correct answer D. +7

Correct answer C. An element that forms at least one stable ion with a partially filled d subshell

Correct answer C. 6

Correct answer B. Mn²⁺ and Fe³⁺

Correct answer A. the 3d and 4s electrons are close in energy and both can be used in bonding

Correct answer A. d-d electron transitions between split d orbitals that absorb visible light

Correct answer D. Ti⁴⁺

Correct answer C. Mn²⁺

Correct answer C. [Ar]3d¹⁰

Correct answer A. 3.87 BM

Correct answer B. 6

Correct answer C. Fe³⁺ has a half-filled 3d⁵ subshell

Correct answer A. the 4s orbital

Correct answer D. 5