Inter (Part-II) Bahawalpur Board 2016
Chemistry 
Part II (Objective Type)
Time Allowed: 20 Minutes 
Max. Marks: 17

Note : Four possible choices A,B,C,D to each question are given. Which choice 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.

• A single chloride free radical can destroy how many ozone molecules:

(A) 10
(B) 100
(C) 1,00,000
(D) 10,000

• The pH range of Acid Rain is:

(A) 7-8
(B) Less than 5
(C) 6.5--7
(D) 5.5—7

• Micro nutrients are required in quantity ranging from:

(A) 4 to 40 g
(B) 5 to 100 g
(C) 6 to 200 g
(D) 10 to 400 g

• Which of the following is an addition polymer:

(A) Nylon 6,6
(B) Epoxy Resin
(C) Terylene
(D) Polystyrene

• One of the following organic compound react with sodium Bicarbonate to produce CO₂ gas:

(A) CH₃COOH
(B) CH₃-C-CH₃
(C) CH₃-CH₂-OH
(D) CH₃COOCH₃

• Ketones are prepared by Oxidation of :

(A) Primary Alcohol
(B) Tertiary Alcohol
(C) Secondary Alcohol
(D) Carboxylic Acid.

• Which one of the given is strongest acid:

(A) HI
(B) HCL
(C) HF
(D) HBr

• Which compound shows hydrogen bonding:

(A) CH₃-O-CH₃
(B) CH₃-CH₃
(C) CH₃≡CH₂
(D) C₂H₅-OH

• When CO₂  is made to react with Ethyl Magnesium iodide, followed by Acid Hydrolysis, the product formed is:

(A) Propnone
(B) Propnoic Acid
(C) Propanol
(D) Propanal

• One of the following can be used as a catalyst in Friedel- Crafts reactions:

(A) ALCL₃
(B) NaCL
(C) H₂SO₄
(D) HNO₃

• Formula of Chloroform is :

(A) CH₃-OH
(B) CH₃-CL
(C) CH₂-CL₂
(D) CHCl₃

• One of the following Molecule is sp² hybridized:

(A) CH₃- CH₃
(B) CH₂= CH₂
(C) CH= CH
(D) CH₄

• Coordination Number of Pt in [Pt CL(NO₂)(NH₃)₄]² is:

(A) 1
(B) 4
(C) 6
(D) 2

• Out of elements of group VII-A , the highest melting and boiling points is shown by element

(A) F₂
(B) I₂
(C) CL₂
(D) BR₂

• Which element form an ion with charge +3:

(A) Chromium
(B) Copper
(C) Lead
(D) Zinc

• The element deposited at Cathode during electrolysis of brine in Diaphram Cell is:

(A) CL₂
(B) Na
(C) O₂
(D) H₂

• Zinc Oxide is an example of :

(A) Neutral
(B) Amphoteric
(C) Acidic
(D) Basic

Inter (Part-II) Bahawalpur Board 2016
Chemistry
Part II (Subjective Type)
Time Allowed: 3.10 Hours 
Max. Marks: 83

Note: It is compulsory to any (6) parts from Q.No.2 and (8-8) parts each from Q.No.3 and Q .No.4 .Attempt any (03) questions from part II while attempt any three parts from Part – III (Practical Part).Write same Question No. and its Part No. as given in the question paper. 22x2=44

Make diagram where necessary. PART I

Question #2

• Give the mechanism of addition of HCN to Acetone.
• Write two uses of Formaldehyde.
• What is Streeker Synthesis ?Give one example.
• What are essential and non essential Amino Acids?
• Write structure of Cholestrol.
• What is Sponification Number? Give one example.
• How PVC is prepared?Give it uses.
• What is Clinker?
• Write names and formulae of two Phosphatic Fertilizers.

Question #3

• What is Atomic Orbital Hybridization?
• What is Tautomerism? Give an example.
• How Cis and Trans Alkenes are obtained from Alkynes?
• Why Alkynes are less reactive than alkenes towards Electrophilic Reagents?
• What objections were raised on Kekule’s formula of Benzene?
• Write the mechanism of Sulphonation of Benzene.
• What is LEACHATE? Give its composition.
• Convert Ethyl Bromide into Ethyl Alcohol and Ethene.
• What is Chemical Oxygen Demand (COD) ?
• How does CH₃- CH₂-MG-Br react with Ethlene Epoxide?
• How Ethyl Alcohol and Iso - propyl Alcohols are oxidized?
• Give the chemical reaction of Diethyl Ethe with HI and PCL₅.

Question #4

• Metallic character increase down the group why?
• How lime Mortor is prepared.
• What are Ionic Hydrides?Give example.
• What is Hard Finish Plaster?
• Write formulas of : (i) Colemanite (ii) Cryolite
• Give any four uses of Aluminium.
• How Aqua Regia reacts with gold? Give equation.
• What is Halothane? Write its formula.
• Give name and formulas of Oxyacids of Phosphorous
• What is Tin Plating?
• Give any four properties of transition elements.
• On what factors Oxidizing Power of Halogens depends upon?

Question #5
(a) What are Silicones? Write any three uses of silicones. (4)
(b) Write chemical reactions of Fluorides of Xenon. (4)

Question #6
(a) Define Orbital Hybridization. Explain sp³ Hybridization with an example. (4)
(b) Define Alkyl Halide.Give three methods to prepare them from alcohols. (4)

Question #7
(a) Describe the Metallic and Non-Metallic character of element in periodic table. (4)
(b) Write the preparation of Sodium Metal by Down’s Cell. (4)

Question #8
(a) Discuss structure of Benzene on the basis of Atomic Orbital Treatment. (4)
(b) Discus Acidic Nature of Phenol. (4)

Question #9
(a) Explain the polymerization of Acetylene (Linear) (4)
(b) What type of Aldehydes give Cannizaro's reaction ? Give its mechanism. (4)

Part-III (Practical Part) 5x3=15

Question #10
(A) Write qualitative analysis for CH3COO^1- Radical in a Systematic Manner. (5)
(B) Write qualitative analysis for Fe²⁺ Radical in a Systematic Manner. (5)
(C) Write qualitative analysis for K⁺ Radical in a Systematic Manner. (5)
(D) How will you identify and confirm phenolic group in an organic compound? (5)
(E) Write material required, equation and procedure for the preparation of Copper Ammino Complex. (5)