Applied Chemistry Past Papers

Last modified on May 12th, 2020

Past Guess Paper of Applied Chemistry.

Guess Paper 1 : Applied Chemistry Past Paper

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Paper :Applied Chemistry

Time Allowed: 3 hours

Examination:   Final, Fall – 2020

Total Marks:    70, Passing Marks (35)

 

Applied Chemistry Past Papers
Applied Chemistry Past Papers

Q:1      (a) fill in the blanks

  • Neutron is present in the ……of an atom
  • Diamond and graphite are …..of carbon
  • The Bond b/w Hydrogen and Oxygen in H2o is….
  • PH of pure H2o is……
  • Alpha rays have……charge

(b) choose the correct answer

     1)    Pieces of glass used as raw material are called

(a) fluxes         b) feldspare     c) cullet           d) Borax

2)   Percentage of silica  inportland cement is

  1. 14 b) 22                c) 30                d) 62

      3)  Which one of the following forms neutral solution in H2o

a)NaCl             b) Na2CO3       c) CuSO4         d) non

      4) Loss of electrons in a chemical reaction is called

  1. a) oxidation b) Reduction c) Hydration    D) non

      5) Molar mass of H2o is ……….

  1. a) 18gm b) 6.02 ×1023  C) 100gm         d) non
  2. C) True and False

1) B.p of H2O is 273k

2 ) viscosity of paint decreases by thinners

3) Sodium chloride is an element

4) The temperature at which a substance catches fire is called Transition temperature

Q.2      (a) Explain the following with examples

1) Mole   (2) shell and subshell (3) Elements  and compounds

(b)  What is natural Radioactivity

Q.3      What are different types of chemical reaction explain with suitable examples

Q.4      What are different types of fuels and also explain the properties of good fuels

Q.5      a) what is glass how it is commercially prepared

  1. b) what are different types of glasses

Q.6      (a) differentiate b/w (1) paints and varnish (2) concrete and mortar

(b) How varnish can be Manufactured?

Q 7      (a). Explain Ionic bond, Covalent bond, and coordinate covalent bond.

(b)   write properties of ionic compounds.

Q.8.     Write notes on any two of the following.

1) periodic law and periodic table      2) hydrogen bonding              3) PH and POH

Guess Paper 2 : Applied Chemistry Past Paper

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Paper :Applied Chemistry

Time Allowed: 3 hours

Examination:   Final, Spring – 2020

Total Marks:    70, Passing Marks (35)

Part A

Q1.      Define the following terms

  1. Isotopes
  2. Isobars
  • Surface tension
  1. Hydrogen bonding
  2. Elastic collsions

Q2.      Fill in the blanks

  1. The relation PV=1/3 mnV2 is called —–
  2. The property by virtue of which a liquid offer resistance to its flow is called —
  • In actual formation of solid, often some irregularities remain in crystal lattice and is called —
  1. The solution that resist change in pH upon addition of acid or alkali is called —
  2. The electron that are involved for the formation of bond are called—

Part B

Q1.      Name different chemicals used in glass manufacturing.        Explain various steps for glass manufacturing

Q2.      What are different raw materials and steps for cement production?

Q3.      What is difference between a covalent and coordinate covalent bond? Explain ionic bond in detail

Q4.      What is ionization potential? How it varies in a periodic table

Q5.      Discuss Lewis concept of acid and base

Q6.      Explain gamma radiation and their properties. Discuss various uses of radio isotopes

Q7.      Differentiate between enamel and paint. Discuss principle constituents of oil paints and lacquers

Q8.      Give important postulates of Bhor’s atomic model. Derive an Expression to calculate radious of an orbit.

Guess Paper 3 : Applied Chemistry Past Paper

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Paper :Applied Chemistry

Time Allowed: 3 hours

Examination:   Final, Spring – 2020

Total Marks:    70, Passing Marks (35)

Q1.           Fill in the blanks.

  1. Unity of surface tention is _____________.
  2. Clay bearing material used in cement are called________________.
  3. Glass is ________________ solid.
  4. The electrode at which oxidation takes place is called_______________.
  5. The substance having tendency to donate a pair of electron towards other species is called ________.

Fill in the blanks.

i. Unity of surface tention is _____________.
ii. Clay bearing material used in cement are called________________.
iii. Glass is ________________ solid.
iv. The electrode at which oxidation takes place is called_______________.
v. The substance having tendency to donate a pair of electron towards other species is called ________.

Indicate the True and False.

  1. Sum of oxidation number of neutral compound is zero.
  2. H-Bond is stronger than ordinary bond.
  3. Aqueous solution of CUSO4 is basic in nature.
  4. Radioactive isotopes are also called Radio-Isotope.
  5. Buffer solution has the ability to resist any change in its PH.

Q2.      Describe the composition of Portland cement. Explain manufacturing process of cement.

Q3.      What are the different concepts of Acids and Bases?

Q4.      a. What are different kinds of fuel?

  1. Explain different properties of fuel?

Q5.      What are different kinds of glass. Discuss preparation of glass?

Q6.      Write notes on any two of the following.

  1. Fission and Fusion reactions.
  2. Concrete and mortar
  3. Vander Waal’s forces

Q7.      a. Explain different rules for the distribution of electrons in different sub-energy level.

  1. What are Isotopes and Isobars. Explain?

Q8.      a. Define paints, varnish .What are different types of paints.

  1. What are ingredients of paints.
  2. How paints are manufacture.

Guess Paper 4 : Applied Chemistry Past Paper

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Paper :Applied Chemistry

Time Allowed: 3 hours

Examination:   Final, Spring – 2020

Total Marks:    70, Passing Marks (35)

                                                            Part A

Q1.      Define the following terms

  1. Isobaric process
  2. Entropy
  • Ideal gas
  1. Chemisorption
  2. Order of a reaction

Q2.      Fill in the blanks

  1. Those processes that takes place at constant volume are called —-
  2. Enthalpy is represented by symbol——
  • A property that depend on quantity of matter present in a system is called –-property
  1. The unit of second order kinetics is —-
  2. The cells which are used for generation of electrical energy from chemical energy are called —-                                     Part B

Q1.      Drive rate equation for first order kinetics. Construct a graph using ist order rate equation.Show slope and intercept.

Q2.      Differentiate between thermodynamic reversible and irreversible processes. Prove that w=-nRT ln P1/P2

Q3.      Define adsorption isotherms. Explain and derive an equation for Langmuir Adsorption isotherms

Q.4.     Discuss Reimer-Tiemann reaction. Give their mechanism

Q5.      What you know about Hoffman’s rearrangement. Explain its mechanism and applications

Q.6.     What are important assumptions of collision theory of bimolecular reactions? Show that collision frequency will increase by 1 percent if the temperature is increased by 10 K

Q.7.     Write a detailed note on valence bond theory. Explain the formation of [CoF6] -3 and [Co(NH3)6]+3 complexes.

Q.8       Discuss in detail heterogeneous catalysis. Give Examples of heterogeneous catalysis with gaseous and liquid reactants

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Prof. Fazal Rehman Shamil
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