General Chemistry MCQs

General Chemistry MCQs

Answer these 1000+ General Chemistry MCQs and assess your grip on the subject of General Chemistry. Scroll below and get started!

1: _____ is a process that helps fuel your metabolism.

A.   Oxidation

B.   Potential; kinetic

C.   Thermodynamics

D.   Light

E.   Calvin cycle

2: _____ make up the nucleus of an atom, whereas _____ surround the nucleus.

A.   Carbohydrates and nucleic acids

B.   Protons & neutrons; electrons

C.   2, hydrophobic, and hydrophilic

D.   Rovers have captured images of bacterial cells within rocks.

3: ________ are particularly polarizable.

A.   Small nonpolar molecules

B.   Small polar molecules

C.   Large nonpolar molecules

D.   Large polar molecules

E.   Large molecules, regardless of their polarity

4: _____, which is released from _____, acts on the ovaries and testes.

A.   Anterior pituitary gland: Antidiuretic hormone

B.   Follicle-stimulating hormone; the anterior pituitary gland

C.   High levels of circulating juvenile hormone inhibiting molting.

D.   Responsive cells express a receptor specific for the hormone.

5: 0.50 mole of nacl is added to 1.0 kg of water. the freezing point of the solution will be ________.

A.   0.00 °C

B.   0.93 °C

C.   -1.86 °C

D.   -0.93 °C

6: 1-methylcyclopentanol is classified as ________.

A.   A primary alcohol

B.   A secondary alcohol

C.   A tertiary alcohol

D.   A phenol

E.   An enol

7: A ______ property describes how a substance acts when it reacts with other substances.

A.   Reactivity

B.   Chemical

C.   Both

D.   None of these

8: A 0.100 m solution of ________ will contain the highest concentration of potassium ions.

A.   Potassium phosphate

B.   Potassium hydrogen carbonate

C.   Potassium hypochlorite

D.   Potassium iodide

E.   Potassium oxide

9: A 17.6-g sample of ammonium carbonate contains ________ mol of ammonium ions.

A.   0.266

B.   0.186

C.   0.366

D.   0.226

10: A bond that is not symmetrical along the axis between two atomic nuclei is a _____.

A.   Pi bond

B.   Polar bond

C.   Covalent bond

D.   Ionic bond

11: A long chain of hydrocarbon bonded to cooh is a ________ acid.

A.   Formic

B.   Carbonic

C.   Amino

D.   Fatty

12: A megamole of titanium contains __________ moles of titanium.

A.   1.0 × 106

B.   1 × 106

C.   Nano-, 1 × 10-9

D.   None of these

13: A mole of red photons of wavelength 725 nm has ________ kj of energy.

A.   1.65

B.   165

C.   227

D.   0.00605

14: A molecule containing a central atom with sp hybridization has a(n) ________ electron geometry.

A.   Trigonal bipyramidal

B.   Octahedral

C.   Trigonal planar

D.   Linear

15: A molecule containing a central atom with sp3d hybridization has a(n) ________ electron geometry.

A.   Trigonal bipyramidal

B.   Octahedral

C.   Trigonal planar

D.   Linear

16: A molecule containing a central atom with sp3d2 hybridization has a(n) ________ electron geometry.

A.   Trigonal bipyramidal

B.   Octahedral

C.   Trigonal planar

D.   Linear

17: A phospholipid is a _____

A.   Nonpolar lipid molecule that is made amphipathic by the addition of a phosphate

B.   Polar lipid molecule that fully interacts with water

C.   Nonpolar lipid molecule that is made polar by the addition of a phosphate

D.   Polar lipid molecule that fully repels water

18: A reaction between an acid and a base is called a(n) ________________ reaction.

A.   Hydro

B.   Ionization

C.   Neutralization

D.   Redox

19: A salt dissolved in water forms _____.

A.   Anions and cations

B.   Only anions

C.   Only cations

D.   Neutral atoms

20: A sample of ch2f2 with a mass of 19 g contains ________ atoms of f.

A.   2.2 × 10^23

B.   38

C.   3.3 × 10^24

D.   4.4 × 10^23

E.   9.5

21: A sample of ch4o with a mass of 32.0 g contains __________ molecules of ch4o.

A.   5.32 × 10^23

B.   1.00

C.   1.88 × 10^22

D.   6.02 × 10^23

E.   32.0

22: A single gram of alcohol contains _____ calories.

A.   7

B.   8

C.   6

D.   5

23: A solution at ph 10 contains __________ than the same amount of solution at ph 8.

A.   100 times less H+

B.   Hydrogen bonds

C.   A higher boiling point

D.   0.032G

E.   Polar

24: A solution of ph 5 has _____ times more hydrogen ions than that of pure water.

A.   10

B.   100

C.   5

D.   50

25: A solution with ph 4 has __________ the h+ concentration of a solution with ph 8.

A.   1/2

B.   2 times

C.   4 times

D.   10,000 times

E.   1/10,000

26: A transmission electron microscope would be the best microscope choice to study _______.

A.   Structures smaller than cells

B.   Single celled organisms

C.   Plant leaves

D.   Amphibian organs

27: A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but no charge.

A.   Neutrons; proton

B.   Electron; neutron

C.   Ion ; neutron

D.   Electron; proton

28: According to the arrhenius concept, an acid is a substance that __________.

A.   Is capable of donating one or more H+

B.   Causes an increase in the concentration of H+ in aqueous solutions

C.   Can accept a pair of electrons to form a coordinate covalent bond

D.   Reacts with the solvent to form the cation formed by autoionization of that solvent

E.   Tastes bitter

29: According to the arrhenius concept, if hno3 were dissolved in water, it would act as ________.

A.   A base

B.   An acid

C.   A source of hydroxide ions

D.   A source of H- ions

E.   A proton acceptor

30: Aldosterone will ________.

A.   Increases when environmental temperature rises

B.   Intrinsic autoregulatory mechanisms

C.   Increases as blood viscosity increases

D.   Veins are called capacitance vessels or blood reservoirs.

E.   Promote an increase in blood pressure

31: All of the following are forms of radiation except _______ rays

A.   Stabilizing

B.   Beta

C.   Alpha

D.   Gamma

32: Amino acids and glucose enter cells by ________.

A.   Active transport

B.   Passive diffusion

C.   Facilitated diffusion

D.   Endocytosis

33: Ammonia is a ________.

A.   Weak acid

B.   Strong acid

C.   Weak base

D.   Strong acid

E.   Salt

34: An aqueous solution of ________ will produce a basic solution.

A.   NaHSO4

B.   NH4ClO4

C.   NaCl

D.   KBr

E.   Na2SO3

35: An aqueous solution of ________ will produce a neutral solution.

A.   NaF

B.   NH4Br

C.   Rb2CO3

D.   KNO2

E.   NaClO4

36: an electron cannot have the quantum numbers n = __________, l = __________, ml = __________.

A.   2, 0, 0

B.   2, 1, -1

C.   3, 1, -1

D.   1, 1, 1

E.   3, 2, 1

37: An electron is most delocalized in a(n) ______________ orbital.

A.   Atomic

B.   Bonding molecular

C.   Antibonding molecular

38: An implication of hund's rule is that _____.

A.   Electrons fill degenerate orbitals singly first, with parallel spins, before the electrons will pair up

B.   The second ionization energy is always greater than the first ionization energy

C.   The rows in the periodic table grow progressively longer because you are adding sublevels as the n level increases.

D.   If two electrons occupy the same orbital, they must have opposite spin numbers

39: An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of ________.

A.   Six

B.   Seven

C.   Two

D.   Nine

40: Any reaction that absorbs 150 kcal of energy can be classified as ________.

A.   Activated

B.   Exothermic

C.   Oxidation

D.   Endothermic

41: Approximately____% of all alcohol consumed is metabolized by the liver.

A.   90

B.   80

C.   70

D.   60

42: Arachidonic acid is associated with ________.

A.   Glucose metabolism

B.   Omega-3 fatty acid metabolism

C.   Omega-6 fatty acid metabolism

D.   Cholesterol metabolism

43: At a temperature of ________ °c, 0.444 mol of co gas occupies 11.8 l at 839 torr.

A.   73 °C

B.   379 °C

C.   32 °C

D.   14 °C

E.   106 °C

44: Atomic radius generally increases as we move ________.

A.   A group of atoms/ions that have the same number of electrons.

B.   Down a group and from right to left across a period

C.   Down a group and from left to right across a period

D.   A group of atoms/ions that have the different number of electrons.

45: Based on the octet rule, iodine most likely forms an ________ ion.

A.   I4-

B.   I2+

C.   I+

D.   I4+

E.   I-

46: Bombarding uranium-235 with _____ creates energy through fission.

A.   High energy neutron

B.   Low energy neutron

C.   High energy protron

D.   Low energy protron

47: Buffers are __________.

A.   The opposite ends of the molecule have opposite electrical charges

B.   Substances that minimize changes in the concentration of H+ and OH- in a solution

C.   A compound that donates hydrogen ions to a solution

D.   Are charged molecules that are attracted to the partial charge of the water molecule

48: Carbohydrates typically include ________.

A.   An NH2 group

B.   C, H, and O atoms

C.   A hydrocarbon chain

D.   A PO4 group

49: Carbon-14 in the atmosphere is transformed from _________.

A.   Geiger counter

B.   Electromagnetic

C.   Never

D.   Nitrogen

50: Chirality occurs when stereoisomers have mirror images that are ________.

A.   Alpha-1,2

B.   Ketopentose

C.   Fructose and glucose

D.   Not superimposable

E.   Monosaccharide