College Chemistry Practice Test 25

Relative Abundance Quiz Questions and Answers PDF - 25

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The Quiz: Isotopes present in nature are; "Relative Abundance" App Download (Free) with answers 280, 270, 290 and 300 to learn online classes courses. Solve basic chemistry questions and answers, Amazon eBook to download free sample for online colleges that offer financial aid.

Relative Abundance Questions and Answers PDF Download: Quiz 25

MCQ 121: Isotopes present in nature are

A) 270

B) 280

C) 290

D) 300

MCQ 122: Lattice energy is decreased when the size of the anion is

A) decreased

B) increased

C) remains same

D) no change

MCQ 123: Energy change is called enthalpy change when it occurs at

A) varied pressure

B) constant volume

C) varied volume

D) constant pressure

MCQ 124: The value of constant 'a' increases with an increase in

A) pressure

B) volume

C) intermolecular forces

D) temperature

MCQ 125: When an electron is brought from infinity to radius r its energy

A) increases

B) decreases

C) remains same

D) reflects

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