ใบงาน เคมีสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is a horizontal row of the periodic table called?

1. AA period
2. BA group
3. CA block
4. DA family

Which electrons take part in chemical bonding?

1. AThe valence (outermost) electrons
2. BThe electrons closest to the nucleus
3. CAll electrons take part equally
4. DOnly the electrons in the first shell

What is the normal pH range of human arterial blood?

1. A7.00 to 7.10
2. B7.85 to 7.95
3. C7.35 to 7.45
4. D6.35 to 6.45

Which substance is a non-electrolyte when dissolved in water?

1. AGlucose
2. BPotassium chloride
3. CHydrochloric acid
4. DSodium chloride

How does evaporation differ from boiling?

1. AEvaporation produces a solid, while boiling produces a gas
2. BEvaporation needs a higher temperature than boiling
3. CEvaporation happens only at the surface and at any temperature; boiling happens throughout the liquid at a set temperature
4. DEvaporation happens throughout the liquid at a set temperature; boiling happens only at the surface

Why can a very high fever disrupt the body's chemical reactions?

1. AHigh temperatures remove the water from blood
2. BHigh temperatures turn enzymes into fats
3. CHigh temperatures can change the shape of enzymes so they stop working
4. DHigh temperatures make every enzyme work faster without any limit

Vitamin C is water-soluble and vitamin D is fat-soluble. What does this suggest about their molecules?

1. AVitamin C is nonpolar, while vitamin D is strongly polar
2. BBoth are ionic compounds
3. CBoth are equally polar
4. DVitamin C is polar, while vitamin D is mostly nonpolar

ธาตุหนึ่งมีการจัดเรียงอิเล็กตรอน 2, 8, 7 ธาตุนี้มีแนวโน้มเกิดไอออนชนิดใดมากที่สุด

1. Aไอออน 2−
2. Bไอออน 1−
3. Cไอออน 7+
4. Dไอออน 1+