उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए रसायन विज्ञान वर्कशीट

Elements in the same period of the periodic table have the same number of what?

1. AProtons
2. BOccupied electron shells
3. CNeutrons
4. DValence electrons

What do the letters STP stand for in gas chemistry?

1. AStable temperature point
2. BStandard temperature and pressure
3. CSpecific temperature and particles
4. DStandard time and pressure

What colour does blue litmus paper turn in an acid?

1. APurple
2. BBlue (no change)
3. CRed
4. DGreen

0.5 mol of KCl is dissolved to make 250 mL of solution. What is its molarity?

1. A0.125 M
2. B125 M
3. C2 M
4. D0.5 M

At STP (0 °C and 1 atm), what volume does 1 mole of an ideal gas occupy?

1. A6.02 L
2. B273 L
3. C22.4 L
4. D1.0 L

Which type of radiation can be stopped by a sheet of paper?

1. ABeta particles (fast electrons)
2. BGamma rays
3. CX-rays
4. DAlpha particles

Ethene has the structure H₂C=CH₂. How many electrons are shared between the two carbon atoms?

1. A8
2. B6
3. C4
4. D2

इनमें से कौन-सी उदासीनीकरण अभिक्रिया है?

1. A2H₂O → 2H₂ + O₂
2. BZn + CuSO₄ → ZnSO₄ + Cu
3. CH₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
4. DCH₄ + 2O₂ → CO₂ + 2H₂O