Chemistry for nursing entrance exams worksheet with answers

Which type of radiation is the most penetrating?

1. ABeta particles
2. BThey are all equally penetrating
3. CAlpha particles
4. DGamma rays

What is a dilute solution?

1. AOne with no solvent at all
2. BOne with a large amount of solute in a little solvent
3. COne in which the solute has reacted with the solvent
4. DOne with a small amount of solute in a lot of solvent

According to the Arrhenius definition, what does a base produce in water?

1. AChloride ions (Cl⁻)
2. BHydroxide ions (OH⁻)
3. CHydrogen ions (H⁺)
4. DCarbonate ions (CO₃²⁻)

Which statement about elements in the same group is correct?

1. AThey have the same atomic mass and the same number of protons
2. BThey have the same number of electron shells but different properties
3. CThey are always all gases at room temperature
4. DThey have the same number of valence electrons and similar chemical properties

Which coefficients balance __Na + __Cl₂ → __NaCl?

1. A1, 1, 1
2. B2, 2, 1
3. C2, 1, 2
4. D1, 2, 1

What is the conjugate base of nitric acid, HNO₃?

1. AH₂NO₃⁺
2. BNO₃⁻
3. CNO₂⁻
4. DHNO₂

How much water must be added to 50 mL of a 10% solution to make a 2% solution?

1. A250 mL
2. B200 mL
3. C40 mL
4. D100 mL

Which list puts 0.1 M solutions of HCl, acetic acid (CH₃COOH) and NaCl in order of increasing pH?

1. AHCl < CH₃COOH < NaCl
2. BCH₃COOH < HCl < NaCl
3. CNaCl < CH₃COOH < HCl
4. DHCl < NaCl < CH₃COOH