정답이 있는 간호학 입학 시험 대비 화학 학습지

DNA belongs to which group of biological molecules?

1. ALipids
2. BNucleic acids
3. CProteins
4. DCarbohydrates

물을 흔히 "만능 용매"라고 부르는 이유는 무엇인가요?

1. A다른 흔한 액체보다 더 많은 물질을 녹이기 때문이다
2. B지구에서 발견되는 유일한 액체이기 때문이다
3. C분자 어디에도 부분 전하가 없어 모든 것과 섞이기 때문이다
4. D모든 물질을 완전히 녹이기 때문이다

Which functional group is found in all alcohols?

1. AAmino group (–NH₂)
2. BCarbonyl group (C=O) only
3. CCarboxyl group (–COOH)
4. DHydroxyl group (–OH)

How can you get solid salt back from salt water?

1. AEvaporate the water
2. BFilter the solution
3. CFreeze the solution and lift out the salt
4. DUse a magnet

Drops of water form on the outside of a glass of ice water. Where does this water come from?

1. AWater leaks through tiny holes in the glass
2. BWater vapour in the air condenses on the cold glass
3. CThe ice evaporates through the glass
4. DThe glass releases water when it gets cold

A reaction has a theoretical yield of 20 g, but only 15 g of product is collected. What is the percent yield?

1. A5%
2. B133%
3. C25%
4. D75%

2090 J of heat is added to 50 g of water (specific heat 4.18 J/g·°C). By how much does its temperature rise?

1. A41.8 °C
2. B5 °C
3. C20 °C
4. D10 °C

Why does drinking seawater make dehydration worse?

1. ASeawater is hypertonic, so the body loses extra water getting rid of the salt
2. BSeawater contains no water molecules the body can use
3. CSeawater is hypotonic, so water rushes into cells and makes them burst
4. DSeawater is isotonic, so it cannot be absorbed