Paper Chemistry Gujranwala Board 2015
Inter part II
Objective Type
Note:   You have four choices for each objective type question as A, B, C and D. The choice which you think is correct; fill that circle in front of that question number. Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question.

• A single chloride free radical can destroy how many ozone molecule:
  
  a) 100
  b) 100000 
  c) 10000
  d) 10
  
  
• Which three elements are needed for the healthy growth of plants?
  
  a) N,S,P
  b) N,Ca,P
  c) N,P,K
  d) N,K,C
  
  
• Which element is not present in all protein?
  
  a) Carbon
  b) Hydrogen
  c) nitrogen
  d) Sulphur
  
  
• Acetic acid manufactured by:
  
  a) distillation
  b) Fermentation
  c) ozonolysis
  d) Esterification
  
  
• Which reagent will react with both aldehydes and ketones?
  
  a) Grignard’s reagent
  b) Tollen’s reagent
  c) Fehling’s reagent
  d) Benedict’s reagent
  
  
• The carbon atom of a carbonyl group is hybridized:
  
  a) sp
  b) sp²
  c) sp³
  d) dsp²
  
  
• Which compound is more soluble in water?
  
  a) C₂H₅OH
  b) C₆H₅OH
  c) CH₃COCH₃
  d) n-Hexanol
  
  
• The reaction of CO₂ and RMgX in acidic media gives:
  
  a) Propane
  b) Propinoic acid
  c) Propanol
  d) Propanal
  
  
• Which gas is used for artificial ripening of fruits?
  
  a) ethene
  b) methane
  c) ethyne
  d) propane
  
  
• The electrophile in associated with which sulphonation is:
  
  a) H₂SO₄
  b) HDO₄^-1
  c) SO₃ 
  d) SO₃¹⁺
  
  
• Linear shape is associated with which set of hybrid orbitals?
  
  a) sp
  b) sp²
  c) dsp²
  d) sp³
  
  
• Group VI B of transition elements contains:
  
  a) Zn, Cd Hg
  b) Fe, Ru,Os
  c) Cr,Mo, W
  d) Mn, Te, Re
  
  
• Which specie has maximum number of unpaired electrons?
  
  a) O₂
  b) O₂¹⁺
  c) O₂^1-
  d) O₂^2-
  
  
• The anhydride of HClO4 is:
  
  a) ClO₃
  b) ClO₂
  c) Cl₂O₅
  d) Cl₂O₇
  
  
• The chief ore aluminum is:
  
  a) Na₃AlF₆
  b) Al₂O₃, ₂H₂O
  c) Al₂O₃
  d) Al₂O₃.H₂O
  
  
• Which one does not belong to the alkaline – earth metals?
  
  a) Be
  b) Ba
  c) Ra
  d) Rn
  
  
• Which order is correct one for the size of atoms?
  
  a) Mg>Sr
  b) Ba>Mg
  c) Lu>Ce
  d) Cl>I

Chemistry (New Scheme)
Gujranwala Board 2015
Time: 3:10 Hours
Inter Part II
Subjective Type
Note: Section 1 is compulsory. Attempt any three (3) questions from Section II and any three (3) Section I parts from Section III.

2. Write short answers to any eight questions: 16

• Why oxidation number of noble gases is usually zero?
• Why Ist electron affinity is negative and 2nd is positive?
• Give reaction of Cu with dil. HNO₃ and cone. HNO₃.
• What is Aqua Regia? How does it dissolve noble metals?
• Write isomers of C₂H₆O.
• Define heterocyclic compounds. Give one example.
• Give only mechanisms for SN2 reaction.
• How is carboxylic acid prepared from Grignard's reagent?
• Which Ester gives banana and orange smell?
• Prepare alcohol and alkane from carboxylic acid.
• Why fertilizers are required?
• Drano paper making machine.

3. Write short answers to any EIGHT questions? 16

• What are the advantages of preparation of sodium by Down's cell?
• What is milk of magnesia? Give its uses.
• Why oxidizing power of F₂ is higher than other halogens?
• What are Freons and Teflon?
• Convert HC=CH into oxalic acid.
• What is Baeyer's text?
• Give the reaction of phenol with conc. H₂SO₄ and acetyl chloride.
• Write down the formulas of picric acid and p-hydroxy benzyl alcolhol.
• What are thermoplastic polymers? Give two examples.
• What is Saponification number?
• What are primary and secondary pollutants?
• What is acid rain?

4. Write short answers to any SIX questions: 12

• In what respects, carbon behaves differently from other members of group IV-A?
• Write four uses of borax.
• What is sacrificial corrosion?
• Define coordination number and coordination ligand. Give one example in each case.
• Define resonance energy.
• Write down mechanism for halogenation of benzene.
• What is "Fehling's solution Test" of aldehydes?
• Give reactions of acetaldehyde with (a) HCN (CH₃-CH₂-OH)
• What is "Haloform Reaction"? Give its uses.

(Section - II)

Q.NO:5
(a) Describe the process for the preparation of sodium metal on industrial scale by Down's cell.
(b) Write two methods for the preparation of alkenes.

Q.No:6
(a) How barox is manufactured?
(b) Discuss two industrial and two laboratory methods to prepare benzene.

Q.No:7
(a) How is nitric acid prepared industrially? Give all equations involved.
(b) Write a detailed note on S_N-1 reactions.

Q.No:8
(a) What happens when bleaching powder reacts with:
(i) dil. H₂SO₄ (ii)conc. H₂SO₄ (iii) H₃ (iv) HI
(b) How ethers are prepared and how do they react with hydrogen iodide?

Q.No:9
(a) Give four types of structural isomerism along with an example in each case.
(b) Write a note on Cannizzaro's reaction.

(Section -III Practical)

1. Write the qualitative analysis of Fe³⁺ radical in a systematic manner. 2,1,2
2. Write the qualitative analysis of K⁺ radical in a systematic manner. 2,1,2
3. Write the qualitative analysis of NO^-₂ radical in a systematic manner. 2,1,2
4. How will you identify carboxylic group in an organic compound? 5
5. Write the material required, equation and procedure preparation of phenyl glucosazone.