Inter (Part-II) Multan Board 2013
Chemistry
Part II (Objective Type)
Time Allowed: 20 Minutes 
Max. Marks: 17

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.

Question #1
Circle the correct option i.e. A/B/C/D. Each part carries one mark.

• Among the following, the compound that can be Sulphonated. most easily is:,

(A) Toluene
(B) Rename
(C) Nitrobenzene
(D) Chlorobenzene

• When CO₂ is made to react with Ethyl Magnesium Iodide, followed by Acid Hydrolysis

(A) Propane acid
(B) Propane
(C) Propanol
(D) Propanal

• Enzyme not involved in fermentation is

(A) Disastase
(B) Zymase
(C) Crease
(D) Inverts

• The compound which will not give Iodoform test is

(A) Acetaldehyde
(B) Acetone
(C) Butanone
(D) 3-Nnizirione

• Reagent which will react with both aldehydes and Ketones is:-

(A) Grignard reagent
(B) Tulln’s reagent
(C) Fehling's reagent
(D) Benedict reagent

• The solution of the acid used for seasoning of food is:.

(A) Formic acid
(B) Acetic acid
(C) Benzoic acid
(D) Botanic acid

• The Nitrogeneous base not present in RNA is:

(A) Cytosim
(B) Adenine
(C) Thiamine
(D) Uracil

• Which is not a Calcareous material?

(A) Lime
(B) Clay
(C) Marble
(D) Marine Shell

• In purification of potable Water the coagulant used is:-

(A) Nickel Sulphate
(B) Copper Sulphate
(C) Barium Sulphate
(D) All

• The intermediate Hydride is:

(A) CsH
(B) ZnH₂
(C) K
(D) Mg

• Which one of the following element from super Oxide?

(A) Li
(B) Be
(C) K
(D) Mg

• The elements having Less than four electrons in its valence shell but it is not a metal:-

(A) B
(B) Al
(C) Ga
(D) In

• The most reactive allotropic phosphorus is:-

(A) White
(B) Rod
(C) Black
(D) None of these

• Hydrogen bond is the strongest between the molecules of-.-

(A) H F
(B) HCl
(C) HBr
(D) HI

• Coordinaitioni number of P_t In [plcl(NO₂)(NH₃)₄ is:-

(A) 2
(B) 4
(C) 5
(D) 6

• Linear shape is associated with which set of Hybrid Orbital!.

(A) sp
(B) sp²
(C) sp³
(D) d sp²

• BB-Dichloro Ethyl Sulphide is. commonly known as

(A) Mustard gas
(B) Laughing gas
(C) Phosgene gas
(D) Biogas

Inter (Part-I) Multan Board 2014
Chemistry
Part I (Subjective)
Time Allowed: 2.10 Hours 
Max. Marks: 83

Section I

Q2.Attempt any eight parts.

• Why metallic character increases from top to bottom in a group?'
• Why diamond is a non-conductor and graphite fairly a good conductor'?
• What is Cement plaster Hard finish plaster?
• Why lime water turns milky with CO₂ but becomes clear with excess CO_{2 ?}
• How Gypsum is converted into Plaster of Paris?
• Write down structure of N₂O and NO₂.
• What is Aqua Regis'?
• Why its SO3 dissolved in H₂S0₄ and not in water?
• What are Freon’s and Teflon?
• How Chromate lone are converted into Dichromate lone
• Compare the reactivates of Alkenes, Alkynes and Alkenes.
• Identify 'A' and ' B' CH₃ – CH₂ –CH₂ - A B

Q3.Attempt any eight parts:

• Write the behavior of AL with conc. NH₃
• Why is CO₂ a gas at room, temperature while SIC₂ is a solid?
• Name the organic compound first of all prepared in the laboratory, and how?
• Discuss Thermal Cracking.
• How Hexane and Heptanes can give Benzene and Toluene respectively?
• How Benzene can be converted Acetophenone, give its mechanism?
• What are primary and tertiary Alkyl Halides? Giwg rxurriples,
• Give the general pattern of tile reaction S_n2-mechanism. What is its rate expression
• Define and give examples for each of Dihydric and Trihydric Alcohols.
• Define Fermentation proccs.
• What is Zwitter Ion?
• What are Acidic Amino Acids? Give example.

Q4. Attempt any six

• What is Silver 'Mirror Test?
• Explain laboratory preparation of Acetaldehyde_
• Write general mechanism of Base-Catalyzed Addition Reaction of Carbonyl Compounds-
• How would you convert Acetone into t - butyl alcohol'?
• What are Thermoplastic Polymers?
• Write down important uses of Lipids.
• What are Fertilizers' Why arc they needed?
• Write important qualities of a good Fertilizer.
• What is Acid Deposition? How does its affect the building materials?

SECTION-II
NOTE: - Attempt any three questions.

Question #5
(a) Define Hydration Energy! Give example.. Explain its trend the Periodic table
(b) How Sodium is prepared commercially by Downs cell .

Question #6
(a) Describe briefly the different types of Structural isomerism.
(b) Prepare Acetaldehyde from (i) Calcium Actable (ii) Ethyl Alcohol

Question #7
(a) Write the. reactions of Ethane with (i) H Br (ii) Br₂ (iii) O₃ (iv) HOCl
(b) Define Nucleophilic substitution reaction and. discuse the mechanism of S,1 reaction.

Question #8
(a) Describe with Mechanism Friedel-Crafts Alkylation’s.
(b) Write down reactions of Acetic Acid with:- (i) Na₂CO₃ (ii) PCl (iii) C₂H₃OH (iv) NH₃

Question #9
(a) What happens when K₂Cr₂O reacts with H₂O, FeSO₄ separately?
(b) How can water be purified?