Inter (Part-II) Faisalabad Board 2015
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.

• The electrophile in aromatic sulphonation is:

(a) H₂SO₄
(b) HSO₄^-1
(c) SO₃
(d) SO₃^®

• Which one is the best leaving group?

(a) I^-1
(b) Br^-1
(c) Cℓ^-1
(d)F^-1

• Which compound causes maximum repulsion with water?

(a) C_{2H5s 0H}
(b) C₆ H₆
(c) CH₃ — O—CH₃
(d) CH₃ —CH₂ —CH₂ —OH

• Cannizzaro's reaction is not given by:

(a)HCHO
(b)

(c)
(d)

• The carbon atom of a carbonyl group is:

(a) sp-hybridized
(b) sp² -hybridized
(c) sp³ -hybridized
(d)d² sp³ -hybridized

• The solution of which acid is used for seasoning of food?

(a) Acetic acid
(b) Formic acid
(c) Benzoic acid
(d) Butanoic acid

• Fats are hydrolyzed by the enzyme.

(a) Urease
(b) Maltase
(c) Zymase
(d) Lipase

• Phosphorous helps the growth of:

(a) Root
(b) Leave
(c) Stem
(d) Seed

• Newspaper can be recycled again and again by how many times?

(a) 2
(b) 3
(c) 4
(d) 5

• Which oxide is amphoteric in nature?

(a) Aℓ₂O₃
(b) Cℓ₂ O₇
(c) MgO
(d) SO₃

• Which one is not an alkaline-earth metal?

(a) Be 
(b) Ra 
(c) Ba 
(d) Rn

• Tincal is a mineral of:

(a) Aℓ 
(b) B
(c) Si
(d) C

• Which catalyst is used in contact process?

(a) Fe₂ O₃
(b) SO₃
(c) V₂O₅
(d) Ag₂O

• Which is the strongest acid?

(a) HCℓO
(b) HCℓO₂
(c) HCℓO₃
(d) HCℓO₄

• Which set of hybrid orbitals produces octahedral geometry:

(a) dsp³
(b) sp³ d²
(c) dsp ²
(d) sp³

• A double bond consists of:

(a) Two sigma bonds 
(b) One sigma & one pi bond
(c) Two pi bonds
(d) Three pi bonds

• The formula of chloroform is:

(a) CH₃ Cℓ
(b) CCℓ₄
(c) CH₂ Cℓ₂
(d) CH Cℓ₃

Inter (Part-I) Faisalabad Board 2015
Chemistry
Part I (Subjective)
Time Allowed: 3.10 Hours 
Max. Marks: 83

Section I

2. Attempt any EIGHT short questions. (8 x 2 = 16)

• How melting and boiling points varied in a period?
• Why the ionic radii of negative ions are larger than size of their atoms.
• NO₂ is a strong oxidizing agent. Prove the truth of this statement giving examples.
• Why SO₃ is dissolved in H₂SO₄ and not in H₂O?
• Define with example reforming of petroleum.
• Give boiling point range (°C) and composition of (a) kerosene (b) naphtha.
• Convert ethyl bromide into quaternary ethyl ammonium bromide.
• Prepare 1-butanol from ethyl magnesium bromide in two steps.
• Write down formula of (a) Glycine (b) alanine
• Name the formulas of any two aromatic acids along with names.
• What are essential qualities of a good fertilizer? Give any four points.
• Define the term (a) cement (b) paper

3. Attempt any EIGHT short questions. (8 X 2 = 16)

• What happen when beryllium react with sodium hydroxide and lithium hydride reacts with water?
• Why HF is weaker acid than HCℓ?
• What is Raney's nickel? Where and when it works?
• How phenol is identified chemically?
• How DNA and RNA differ from each other?
• What do you know about reducing smog and oxidizing smog?
• Why limewater turns milky with CO₂ but becomes clear with excess of CO?
• Give four applications of noble gases.
• What do you know about Markownikov's rule?
• How bakalite is prepared from formaldehyde and phenol?
• What are triglycerides? Give an example.
• How chlorofluorocarbons remove O³ from stratosphere chemically?

4. Attempt any SIX short questions. (6 x 2 = 12)

• What is the action of litmus with aqueous solution of borax?
• What is meant by chemical garden?
• What are chelates?
• Give four properties of transition elements.
• How benzene be prepared from acetylene?
• Give the possible isomeric structures of xylene.
• Give four uses of formaldehyde.
• Convert methanal into ethanal.
• How hydrazine reacts with acetone?

SECTION-II

Attempt any THREE questions. (8x3=24)

Question #5.
(a) Give peculiar behaviour of Be from other family elements.
(b) How will you convert ethene into (i) ethyl alcohol (ii) ethylene epoxide (iii) ethylene glycol (iv) ethylene chlorohydrin?

Question #6.
(a) What is boric acid? Give its properties.
(b) Describe the structure of benzene on the basis of atomic orbital treatment.

Question #7
(a) Explain Birkeland and Eyde's process for preparation of HNO₃
(b) Give methods to prepare alkyl halides from alcohols. 04

Question #8.
(a) How does bleaching powder reacts with (i) NH₃ (ii)HCℓ (iii) H₂O (iv) H₂ SO₄
(b) Write down two methods for preparing phenol. Give the reaction of phenol with HNO₃ and Zn.

Question #9.
(a) Write note on cracking of petroleum.
(b) Define aldol condensation giving one example. Discuss its mechanism .

SECTION- III

Attempt any THREE questions: (5x3=15)

(a) Write qualitative analysis of Cr⁺³ radical in systematic manner.
(b) Write qualitative analysis of Ca⁺² radical in a systematic manner
(c) (i)Write systematic qualitative analysis of CH₃COO^- radical.
(c) (ii) How ring test is performed?
(d) How will you identify aldehydic functional group in an organic compound?
(e) Write the material required, equation and procedure for the preparation of aspirin