General Chemistry Quiz

What are the basic particles that make up an atom?

• Proton, neutron, electron

• Proton, positron, electron

• Neutron, electron, photon

• Proton, neutron, quark

In the periodic table, which group does the element with Z = 17 belong to?

• Group IA

• Group VIIA

• Group IIB

• Group VIIIB

Isotopes of an element differ in:

• Number of protons

• Number of neutrons

• Number of electrons

• Number of electron shells

Ionic bonds are formed due to:

• Sharing of electrons

• Electrostatic attraction between cations and anions

• Orbital overlap

• Van der Waals forces

Which of the following molecules has a polar covalent bond?

• Cl₂

• HCl

• CH₄

• O₂

According to VSEPR theory, the molecular geometry of H₂O is:

• Trigonal planar

• Bent

• Tetrahedral

• Linear

Which of the following reactions is a redox reaction?

• NaCl + AgNO₃ → AgCl + NaNO₃

• 2H₂ + O₂ → 2H₂O

• NaOH + HCl → NaCl + H₂O

• CaCO₃ → CaO + CO₂

The equilibrium constant Kc for the reaction 2SO₂ + O₂ ⇌ 2SO₃ is expressed as:

• Kc = [SO₃]² / ([SO₂]²[O₂])

• Kc = [SO₂]²[O₂] / [SO₃]²

• Kc = [SO₃] / ([SO₂][O₂])

• Kc = [SO₂][O₂] / [SO₃]

Which factor does not affect chemical equilibrium?

• Temperature

• Pressure

• Catalyst

• Concentration

Which solution conducts electricity best?

• Distilled water

• 0.1M NaCl solution

• 0.1M sugar solution

• Ethanol solution