Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Which element exists naturally as diatomic molecules (two atoms joined together)?

1. AOxygen
2. BHelium
3. CSodium
4. DIron

What is the SI unit of temperature?

1. AKelvin
2. BDegree Fahrenheit
3. CDegree Celsius
4. DJoule

What is gamma radiation?

1. AA stream of helium nuclei with a positive charge
2. BHigh-energy electromagnetic radiation with no mass or charge
3. CA slow-moving electron
4. DA fast stream of protons from the nucleus

Which statement describes a saturated fat?

1. AIts fatty acid chains have many carbon–carbon double bonds
2. BIt contains no carbon atoms
3. CIt is always liquid at room temperature
4. DIts fatty acid chains have no carbon–carbon double bonds

A room is at 25 °C. What is this temperature in kelvin?

1. A248 K
2. B298 K
3. C77 K
4. D−248 K

For the gas reaction N₂ + 3H₂ ⇌ 2NH₃, what is the effect of increasing the pressure?

1. AThe equilibrium shifts to the left, toward N₂ and H₂
2. BThe equilibrium shifts to the right, toward NH₃
3. CThere is no effect on the equilibrium
4. DThe NH₃ breaks down completely

For N₂ + 3H₂ → 2NH₃, 1 mol of N₂ is mixed with 2 mol of H₂. Which reactant is limiting?

1. ANeither, because both are used up exactly
2. BN₂, because there is less of it
3. CH₂, because 1 mol of N₂ would need 3 mol of H₂
4. DNH₃, because it is the product

Sulfuric acid reacts with sodium hydroxide: H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. How many moles of NaOH neutralise 0.5 mol of H₂SO₄?

1. A0.25 mol
2. B2 mol
3. C0.5 mol
4. D1 mol