Unit 2 MSHS Chem quiz

What is the shape of a methane (CH4) molecule?

• Linear
• Trigonal Planar
• Tetrahedral
• Bent

Which molecule is polar?

• Carbon dioxide (CO2)
• Methane (CH4)
• Water (H2O)
• Oxygen (O2)

What is the strongest type of intermolecular force?

• London dispersion forces
• Dipole-dipole interactions
• Hydrogen bonding
• Van der Waals forces

What is the molar volume of a gas at STP?

• 22.4 L
• 0.0821 L
• 1.00 L
• 24.8 L

What is the concentration if 0.690 g KF is dissolved in 230 mL of solution?

• 0.012 M
• 0.028 M
• 0.053 M
• 0.098 M

Which of the following is a strong acid?

• Hydrochloric acid (HCl)
• Acetic acid (CH3COOH)
• Carbonic acid (H2CO3)
• Nitrous acid (HNO2)

Which indicator turns dark pink in a strong acid?

• Bromothymol blue
• Methyl orange
• Phenolphthalein
• Litmus

What are the products of a neutralisation reaction?

• Acid and base
• Salt and water
• Salt and acid
• Base and water

Which of the following compounds is soluble in water?

• Silver bromide (AgBr)
• Lead iodide (PbI2)
• Potassium hydroxide (KOH)
• Aluminium hydroxide (Al(OH)3)

What is the molecular shape of phosphorus trichloride (PCl3)?

• Tetrahedral
• Trigonal pyramidal
• Bent
• Linear