IGCSE A Level Chemistry Practice Test 51

Electronic Configurations Quiz PDF: Questions and Answers - 51

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Electronic Configurations Questions and Answers PDF Download: Quiz 51

MCQ 251: The electronic configuration of chromium is

[Ar]2d⁵,4s¹
[Ar]2d⁴,4s²
[Ar]2d⁵,4s²
[Ar]2d⁴,4s¹

MCQ 252: In 1748, the first time the word used in connection with electricity was

battery
charge
electrode
none of above

MCQ 253: Law relating to concentrations of substances present at equilibrium and to the stoichiometric equation is known as

Law of mass action
Charle's Law
Law of conversation of energy
Boyle's law

MCQ 254: Halogen with the highest electronegativity is

MCQ 255: Repulsion in electron pairs occurs until the

repulsive forces are maximized
repulsive forces are minimized
repulsive forces are completely diminished
attraction takes over repulsion

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