TEST BANK FOR GENERAL, ORGANIC, AND
BIOLOGICAL CHEMISTRY (QUESTIONS
COMPLETE PACK) - ALIGNED WITH KENNETH
RAYMOND 4E
Ace your nursing and pre-med chemistry exams
with this comprehensive question test bank
covering general, organic, and biological
chemistry principles. Every multiple-choice
question is immediately followed by a verified
answer and a detailed, high-yield clinical
rationale to ensure rapid concept mastery.
Perfect for self-testing, this structured guide
maps directly to major foundational health
sciences curricula.
Part 1: General Chemistry Core (Questions 1–35)
Question 1
A patient requires a dosage of 0.50 grams of a medication. The
pharmacy stocks tablets containing 250 mg of the drug. How
many tablets should the nurse administer?
,A) 0.5 tablets
B) 1 tablet
C) 2 tablets
D) 4 tablets
Answer: C
Rationale: To find the correct number of tablets, convert the
grams to milligrams: 0.50 g × 1000 mg/g = 500 mg. Next,
divide the total required dosage by the tablet strength: 500
mg / 250 mg per tablet = 2 tablets.
Question 2
Which of the following is considered a pure substance rather than
a mixture?
A) Physiological saline solution
B) Blood plasma
C) Distilled water
D) Air inside an oxygen tent
Answer: C
Rationale: Distilled water consists entirely of water
molecules (H₂O) with a fixed chemical composition, making it
a pure substance (specifically a compound). Saline, blood,
and air are all mixtures containing multiple different
components physically combined.
Question 3
An atom of an isotope contains 19 protons, 20 neutrons, and 18
electrons. What is the correct identity and charge of this species?
A) Ar
B) K⁺
,C) Ca²⁺
D) K
Answer: B
Rationale: The number of protons (19) determines the atomic
number, which uniquely identifies the element as potassium
(K). Since it has 19 positive protons and 18 negative
electrons, it possesses a net +1 charge, forming the cation
K⁺.
Question 4
Which element is classified as a halogen and is essential for
normal thyroid function?
A) Iodine (I)
B) Iron (Fe)
C) Fluorine (F)
D) Sodium (Na)
Answer: A
Rationale: Iodine belongs to Group 7A (17), making it a
halogen. The thyroid gland requires iodine to synthesize
thyroid hormones like thyroxine. Iron is a transition metal,
fluorine is a halogen but not for thyroid function, and sodium
is an alkali metal.
Question 5
Which type of radiation possesses the greatest penetrating power
and requires thick lead shielding to stop?
A) Alpha particles
B) Beta particles
C) Gamma rays
D) Positrons
, Answer: C
Rationale: Gamma rays are high-energy electromagnetic
radiation with no mass or charge, allowing them to penetrate
deep into materials. Alpha particles are stopped by paper,
and beta particles/positrons are blocked by thin plastic or
aluminum.
Question 6
Technetium-99m has a half-life of 6 hours. If a patient is injected
with a 40.0 mCi dose for a medical scan, how much radioactivity
remains in the patient's body after 24 hours?
A) 20.0 mCi
B) 10.0 mCi
C) 5.0 mCi
D) 2.5 mCi
Answer: D
Rationale: Twenty-four hours represents exactly four half-
lives ( = 4). The original activity is halved four
successive times: 40.0 → 20.0 → 10.0 → 5.0 → 2.5 mCi.
Question 7
When an ionic bond is formed between sodium and chlorine,
which of the following processes occurs?
A) Sodium gains an electron to form an anion.
B) Chlorine loses an electron to form a cation.
C) Sodium transfers an electron to chlorine.
D) Electrons are shared equally between both atoms.
Answer: C
Rationale: Ionic bonds form through the complete transfer of
valence electrons from a metal to a nonmetal. Sodium (a
BIOLOGICAL CHEMISTRY (QUESTIONS
COMPLETE PACK) - ALIGNED WITH KENNETH
RAYMOND 4E
Ace your nursing and pre-med chemistry exams
with this comprehensive question test bank
covering general, organic, and biological
chemistry principles. Every multiple-choice
question is immediately followed by a verified
answer and a detailed, high-yield clinical
rationale to ensure rapid concept mastery.
Perfect for self-testing, this structured guide
maps directly to major foundational health
sciences curricula.
Part 1: General Chemistry Core (Questions 1–35)
Question 1
A patient requires a dosage of 0.50 grams of a medication. The
pharmacy stocks tablets containing 250 mg of the drug. How
many tablets should the nurse administer?
,A) 0.5 tablets
B) 1 tablet
C) 2 tablets
D) 4 tablets
Answer: C
Rationale: To find the correct number of tablets, convert the
grams to milligrams: 0.50 g × 1000 mg/g = 500 mg. Next,
divide the total required dosage by the tablet strength: 500
mg / 250 mg per tablet = 2 tablets.
Question 2
Which of the following is considered a pure substance rather than
a mixture?
A) Physiological saline solution
B) Blood plasma
C) Distilled water
D) Air inside an oxygen tent
Answer: C
Rationale: Distilled water consists entirely of water
molecules (H₂O) with a fixed chemical composition, making it
a pure substance (specifically a compound). Saline, blood,
and air are all mixtures containing multiple different
components physically combined.
Question 3
An atom of an isotope contains 19 protons, 20 neutrons, and 18
electrons. What is the correct identity and charge of this species?
A) Ar
B) K⁺
,C) Ca²⁺
D) K
Answer: B
Rationale: The number of protons (19) determines the atomic
number, which uniquely identifies the element as potassium
(K). Since it has 19 positive protons and 18 negative
electrons, it possesses a net +1 charge, forming the cation
K⁺.
Question 4
Which element is classified as a halogen and is essential for
normal thyroid function?
A) Iodine (I)
B) Iron (Fe)
C) Fluorine (F)
D) Sodium (Na)
Answer: A
Rationale: Iodine belongs to Group 7A (17), making it a
halogen. The thyroid gland requires iodine to synthesize
thyroid hormones like thyroxine. Iron is a transition metal,
fluorine is a halogen but not for thyroid function, and sodium
is an alkali metal.
Question 5
Which type of radiation possesses the greatest penetrating power
and requires thick lead shielding to stop?
A) Alpha particles
B) Beta particles
C) Gamma rays
D) Positrons
, Answer: C
Rationale: Gamma rays are high-energy electromagnetic
radiation with no mass or charge, allowing them to penetrate
deep into materials. Alpha particles are stopped by paper,
and beta particles/positrons are blocked by thin plastic or
aluminum.
Question 6
Technetium-99m has a half-life of 6 hours. If a patient is injected
with a 40.0 mCi dose for a medical scan, how much radioactivity
remains in the patient's body after 24 hours?
A) 20.0 mCi
B) 10.0 mCi
C) 5.0 mCi
D) 2.5 mCi
Answer: D
Rationale: Twenty-four hours represents exactly four half-
lives ( = 4). The original activity is halved four
successive times: 40.0 → 20.0 → 10.0 → 5.0 → 2.5 mCi.
Question 7
When an ionic bond is formed between sodium and chlorine,
which of the following processes occurs?
A) Sodium gains an electron to form an anion.
B) Chlorine loses an electron to form a cation.
C) Sodium transfers an electron to chlorine.
D) Electrons are shared equally between both atoms.
Answer: C
Rationale: Ionic bonds form through the complete transfer of
valence electrons from a metal to a nonmetal. Sodium (a
