ใบงาน เคมีสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

Which property is typical of nonmetals?

1. AThey are poor conductors of heat and electricity
2. BThey are all solids at room temperature
3. CThey easily lose electrons to form positive ions
4. DThey are shiny and easily bent into wires

What are the building blocks (monomers) of proteins?

1. ASimple sugars
2. BFatty acids
3. CNucleotides
4. DAmino acids

แถวแนวตั้งของตารางธาตุเรียกว่าอะไร

1. Aคาบ
2. Bหมู่
3. Cชั้น
4. Dอนุกรม

What is the oxidation number of sulfur in H₂SO₄?

1. A−2
2. B+6
3. C+4
4. D+2

A gas mixture contains nitrogen at 600 mmHg, oxygen at 150 mmHg and other gases at 10 mmHg. What is the total pressure?

1. A760 mmHg
2. B253 mmHg
3. C600 mmHg
4. D750 mmHg

What feature makes a hydrocarbon an alkene?

1. AA ring of six carbon atoms with no hydrogen
2. BOnly carbon–carbon single bonds
3. CAt least one carbon–carbon double bond
4. DAn –OH group

In the fission reaction ²³⁵U + ¹n → ¹⁴¹Ba + ⁹²Kr + ? ¹n, how many neutrons are released?

1. A2
2. B1
3. C4
4. D3

พันธะใดมีขั้วมากที่สุด

1. AH–H
2. BCl–Cl
3. CC–H
4. DH–F