उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

How many millilitres are in 1 litre?

1. A10
2. B10,000
3. C100
4. D1000

ठोस से सीधे गैस में परिवर्तन को क्या कहते हैं?

1. Aगलन
2. Bसंघनन
3. Cऊर्ध्वपातन (सब्लिमेशन)
4. Dनिक्षेपण (डिपॉज़िशन)

Which positive ion is found in the highest concentration inside most body cells?

1. ASodium (Na⁺)
2. BCalcium (Ca²⁺)
3. CPotassium (K⁺)
4. DMagnesium (Mg²⁺)

What colour is phenolphthalein indicator in a basic solution?

1. APink
2. BYellow
3. CColourless
4. DBlue

A solution has a pH of 2. What is its hydrogen ion concentration?

1. A1 × 10⁻² mol/L
2. B1 × 10⁻¹² mol/L
3. C2 mol/L
4. D1 × 10² mol/L

A plastic block has a density of 0.8 g/cm³. What happens when it is placed in water (density 1.0 g/cm³)?

1. AIt stays suspended halfway down
2. BIt floats
3. CIt dissolves
4. DIt sinks

Why is incomplete combustion of fuel in a poorly ventilated room dangerous?

1. AIt produces nitrogen, which replaces oxygen in the blood
2. BIt produces extra oxygen, which damages the lining of the lungs over time
3. CIt produces water vapour, which is toxic
4. DIt produces carbon monoxide, which binds to haemoglobin and blocks oxygen transport

समीकरण __C₃H₈ + __O₂ → __CO₂ + __H₂O को संतुलित कीजिए। O₂ का गुणांक क्या है?

1. A5
2. B10
3. C4
4. D3