उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

Which three elements make up carbohydrates?

1. ACarbon, hydrogen and nitrogen
2. BCarbon, nitrogen and sulfur
3. CCarbon, hydrogen and oxygen
4. DHydrogen, nitrogen and phosphorus

What is plasma, as a state of matter?

1. AThe liquid part of blood
2. BA solid that conducts electricity
3. CA very hot gas in which atoms have lost electrons and become ions
4. DA liquid that has been cooled below its freezing point

What is the SI base unit of mass?

1. APound
2. BGram
3. CKilogram
4. DNewton

कौन-सा तत्व सबसे अधिक विद्युतऋणात्मक है?

1. Aहीलियम
2. Bसोडियम
3. Cलोहा
4. Dफ़्लुओरीन

AgNO₃ + NaCl → AgCl + NaNO₃ किस प्रकार की अभिक्रिया है?

1. Aएकल विस्थापन
2. Bवियोजन
3. Cदहन
4. Dद्विविस्थापन

According to the Brønsted–Lowry definition, what is an acid?

1. AAn electron pair donor
2. BA proton (H⁺) donor
3. CA proton (H⁺) acceptor
4. DA hydroxide ion donor

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

1. ABoth are ionic compounds
2. BVitamin C is polar, while vitamin D is mostly nonpolar
3. CVitamin C is nonpolar, while vitamin D is strongly polar
4. DBoth are equally polar

0.2 M विलयन के 500 mL बनाने के लिए कितने ग्राम NaOH (मोलर द्रव्यमान 40 g/mol) चाहिए?

1. A8 g
2. B40 g
3. C0.1 g
4. D4 g