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Chemistry Mock Test
Chemistry Mock Test (Medium)
Chemical formulas, equations, compounds, and calculations practice for CSCA.
Multiple Choice (10 questions)
1
What is the electron configuration of a neutral Oxygen atom?
A. 1s² 2s² 2p2
B. 1s² 2s² 2p6
C. 1s² 2s² 2p4
D. 1s² 2s² 2p³
Answer:C
2
Which of the following elements is a halogen?
A. Sodium (Na)
B.Calcium (Ca)
C.(Concentration)²
D. Neon (Ne)
Answer: D.
3
In the periodic table, elements in the same group have:
A.Similar chemical properties
B.Identical physical states
C.The same number of electron shells
D.Identical physical states
Answer: A.
4
What type of bond is formed when electrons are transferred from one atom to another?
A. Covalent bond
B. Ionic bond
C. Metallic bond
D. Hydrogen bond
Answer: B.
5
How many protons, neutrons, and electrons are in an atom of Carbon-14 (¹4C)?
A. 6 protons, 6 neutrons, 6 electrons
B. 6 protons, 8 neutrons, 6 electrons
C. 8 protons, 6 neutrons, 8 electrons
D. 6 protons, 6 neutrons, 8 electrons
Answer: A.
6
What is the pH of a solution with [H?] = 1 × 10?5 M?
A. 1
B. 9
C. 5
D. 2
Answer: C.
7
Which of the following is a balanced chemical equation?
A. 2H2 + O2 ? 2H2O
B. H2 + 2O2 ? 2H2O
C. 2H2 + 2O2 ? 2H2O
D. H2 + O2 ? H2O
Answer: A.
8
What is the name of the compound FeCl3?
A. Iron chloride
B. Iron(I) chloride
C. Iron(III) chloride
D. Iron(II) chloride
Answer: C.
9
“In a chemical reaction, the substances that are produced are called::
A. Reactants
B. Products
C. Catalysts
D. Solvents
Answer: B. .
10
Which of the following is a property of acids?
A. They feel slippery
B. They turn blue litmus paper red
C. They have a pH greater than 7
D. They release OH? ions in water
Answer: B.
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