Inter (Part-II) Sargodha 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.

• Which One of the following has highest hydration energy:

(A) Na⁺
(B) Ca^-1
(C) Ma⁺
(D) Li⁺

• Which of the, following sulphate, is not soluble in water:

(A) Sodium Sulphale
(B) Potassium sulphate
(C) Sarium salphate
(D) Zine suiphate

• The Chief are of Aluminium is:

(A) Na₃AlF₆
(B) Al₂O₃.2H₂O
(C) Al₂O₃
(D) Al₂O₃.2H₂O

• Which of the following species has maximum of l unpaired electrons?

(A) O₂
(B) O⁺₂
(C) O^-₂
(D) O^-2₂

• Which is strongest acid?

(A) HClO
(B) HClO₂
(C) HClO₃
(D) HClO₄

• What is Coordination number of Fe(iron) in K₁[Fe(CN)₆]

(A) 4
(B) 6
(C) 2
(D) 3

• In t- Butyl alcohol, the tertiary carbon is bonded to:

(A) Two hydrogen atoms
(B) Three hydrogen atoms
(C) One hydrogen atom
(D) No hydrogen atom

• β-β’ dichioroethyl sulphide is commonly known as:

(A) Musted gas
(B) Laughing gas
(C) Phosphene gas
(D) Bio-gas

• Which of the following acide can be used catalyst in Fridiel-Crafts reactions:

(A) HNO₃
(B) AlCl₃
(C) BeCl₃
(D) NaCl

• Grignard reagent is reactive due to:

(A) The presence of halogen atom
(B) The presence of Mg atom
(C) The polarity of C-Mg bond
(D) The presence of C-Mg bond

• Which compound shows maximum hydrogen bonding with water?

(A) CH₃OH
(B) C₂H₃OCH
(C) CH₃―O―CH₃
(D) C₆H₃OH

• Which of the following reagent will react with aldehydes and ketonts?

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

• Which reagent is used to reduce a carboxylic acid to alcohol?

(A) H₂lNi
(B) H₂lP₁
(C) NaBH
(D) liAlH₄

• Acetone reacts with HCN to form Cyanohydrin. It is an example of:

(A) Electrophilic additioin
(B) Electrophilic substitions
(C) Nucleoplilic addition
(D) Nucleoplilic substitution

• Which of these polymers is a synthitic polymer?

(A) Animal fat
(B) Starch
(C) Cellulose
(D) Polyester

• Which woody raw material is used for the manufacture of paper pulp.

(A) Cotton
(B) Bagasse
(C) Papular
(D) Rice straw

• Ecosystem is a smaller unit of:

(A) Lithosphere
(B) Hydrosphere
(C) Atmosphere
(D) Biosphere

Inter (Part-II) Sargodha Board 2015
Chemistry
Part II (Subjective)
Time Allowed: 2.10 Hours 
Max. Marks: 83 

Section I

2. Answer briefly any Eight parts from the followings: 8 x2=16

• What are S-block elements?
• Justify that H₂SO₄ is a king of chemical.
• Define hydration of ions.
• What is the modern defination of organic chemistry.
• Write the reaction of NO₂ (g) with a H₂S
• How do alkyl halides react with aqueous KOH.
• What is the meant by cis and trans isomers.
• Give the reaction PCl₃ and PCl₅ with ethanol.
• What are amino acids? Give two examples.
• What is lignin?
• What is hydration test?
• What is meant by setting of cement?

3. Answer briefly any Eight parts from the following: 8 x2=16

• What happene when CO₂ gas is passed through lime water?
• What is the advantages of the down cell for the preparation of sodium on commercial scale?
• Due to which reason fluorine shows peculiar behavior from family member.
• Write two important application of helium.
• What is Baeyer,s test to check the presence of carbon double bond?
• Give the mechanism of O₃ onolysis of ethane.
• Ethanol give different p[roduct with cone. H₂SO₄ under different conditions. Give equation
• How iodoform test can be used to distinguished between mmmmethyl alcohol and Ethyl alchohol
• Give the classification of carbohydrates with an example of each.
• Define proteins and write names of elements present in them.
• Explain the term COD
• What are the primary air pollutants?

4. Answer briefly any Six parts from the following: 6×2=12

• Why CO₂ is non-polar in nature?
• Give the formulas different acid of boron
• Under what conditions does aluminium corrode?
• Give systematic name of following complexes.
• K₂[Cu(CN)₁] (b) K₂ [P₁Cl₆]
• Give two addition reactions of benzene.
• Prepare m-chloronitrobenzene from benzene in two steps.
• What types of aldehydes give caanizzaro's reaction.
• Discuss oxidation of ketones with K₂Cr₂O₇ lH₂SO₄
• Give four uses of formaldehyde.

Section----------II

Note: Attempt any three questions (8x 3 = 24)

Question #5.
(a) Write note on Carbonates of alkali and alkaline earth metals.
(b) Give uses of methane.

Question #6.
(a) What are silicones? Discuss the properties of siliconces.
(b) Straight chain structure of beneze is ruled out. Explain.

Question #7.
(a) write equations for the reaction of one HNO₃ with (i) Hl (ii) Sn (iii) Cu (iv) Zn
(b) Differentiate between SN¹ and SN² reactions.

Question #8.
(a) write four points which show the peculiar behaviour of flourine from other halogens.
(b) Describe the industrial method of preparation of methanol.

Question #9.
(a) Definc and explain Sp-Hybridization with an example.
(b) Explain the following tests. (i) ledoform test (ii) Fehling’s solution test

Section------III

Note: Attempt any three questions 3×5=15

(a) Write qualitative analysis of Mn⁺² in a systematic manner.
(b) Write qualitative analysis of K⁺¹  ln a systematic manlier.
(c) (i) Describe chromyl chloride test. (ii) Write qualitative analysis of HCO^-1 in a saytematic manner.
(d) How will you detect aldehyde group in the organic compound.
(e) Write the material required, equation and procedure for pr0eparation of iodoform.