Chemistry Guess Paper

Section A

1. Write Five Points Of Rutherford's Atomic Model?

2. Define Electrolysis. Explain the mechanism of Electrolysis of aquerus CuCl₂ .Describe what are the classes?

3. Define Transition element ,write four properties of Transition elements?

4. Define Density .Determine the volume of Wooden box the mass is 0.045kg and Density is 2.4g/cm³  ?

5. Define Following Terms:

   • Empirical Formulae

   • Isotopes

   • Atomic Radius and Atomic Number

   • Covalent Bond and Polar Covalent Bond

   • Specific Heat and Specific Gravity

6.  Determine the Temperature of  ⁰F and Kelvin of an iron rod which is heated up to  68.5 ⁰C?

7.  Determine the percentage of each element present in the following Compound ?

   • H₂NCONH₂

   • CUSO₄SH₂O

   • NaHSO₄

8. Determine Chemical Reaction , describe four type of  Chemical Reaction?

9. Write down properties of Cathode and Anode Rays?

10. Differentiate Concept of Acid and Base with examples?

11. why so the element of same group resemble one another Chemically? Write down the name of any there elements of 

    • Group I-A

    • Group II-A

    • Group VII-A

12. Differentiate Between:

    • Symbol and Formulae

    • Heavy Water and Ordinary Water

    • Ionic Bond and Covalent Bond

13. Define Soft Water and Hard Water. Describe Clark's method removal of hardness of water?

Section B

1. Define Five Differences Between Organic and Inorganic Compound?
2. Describe the process of   Industrial preparation  of Caustic Soda (NoaH)?
3. Flow chart Of Solvay Process of manufacture of sodium carbonate?
4. Write down names and chemical formulae of two important ores of aluminum, give two chemical properties with balanced equations of the metal?
5. Write down Differences between Metal and Non-Metal?
6. What is Ozone ? How it is produces in nature ?Describe role of Ozone in atmosphere ? Describe importance and use of Ozone?
7. Describe how Nitric acid prepared by Oswald's Process, write  the name of the Catalyst used and indicate the range of temperature?
8. How Iron and Aluminum is extracted from it's Ore?
9. Write the name and chemical formulae of  any two ores of Copper and describe the process of electrolytic refining  of blister Copper, also draw labeled diagram?
10. Describe the process of Industrial preparation  of Hydrogen ?
11. Describe the process of Industrial preparation of Cement ?
12. Define Following Terms:

• Homologous Series 
• Fiber Glass 
• Isomerism
• Chemical Formulae of
  • Carbon tetrachloride
  • Starch
  • Ethyl Alcohol
  • Octane
  • Functional Groups

-------GOOD LUCK-------