उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

Which element has the symbol Fe?

1. AFermium
2. BFrancium
3. CIron
4. DFluorine

Which property is typical of nonmetals?

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

What is the change from a gas to a liquid called?

1. AEvaporation
2. BCondensation
3. CSublimation
4. DFreezing

In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which species loses electrons?

1. ACu²⁺
2. BCu
3. CZn²⁺
4. DZn

ऑक्सीजन गैस, O₂, के अणु में किस प्रकार का आबंध होता है?

1. Aआयनिक आबंध
2. Bध्रुवीय सहसंयोजी एकल आबंध
3. Cधात्विक आबंध
4. Dअध्रुवीय सहसंयोजी द्विआबंध

Nitrogen is in group 15 of the periodic table. How many valence electrons does a nitrogen atom have?

1. A15
2. B5
3. C7
4. D3

Hydrogen is usually placed at the top of group 1. Which statement about hydrogen is correct?

1. AIt is an alkali metal that is solid at room temperature
2. BIt has one valence electron like group 1 metals, but it is a nonmetal gas
3. CIt has a full outer shell like the noble gases
4. DIt always forms H⁺ ions and never shares electrons

Which coefficients balance the equation for cellular respiration, __C₆H₁₂O₆ + __O₂ → __CO₂ + __H₂O?

1. A1, 6, 6, 12
2. B1, 6, 6, 6
3. C1, 3, 6, 6
4. D2, 6, 12, 6