Tiêu đề XII Science Mid Yearly Exams Papers 2023-24 ✅

NEWTON’S INN COACHING CENTRE Mid Yearly Examination 2023-2024 Paper: - Chemistry Theory Time: 20 Minutes H.S.C Part II (Science Group) CODE: - CHM-XII Section “A” (Compulsory) Multiple Choice Questions (M.C.Qs) Max Marks: 17 Note: (a) Attempt all the questions. (b) Each question carries one mark. (c) Copy answer on your answer copy. (d) Do not write anything on this paper. Q No 1. Choose the correct answer for each from the given options. (i) The addition of oxygen to the double bond of alkenes is known as: (a) Ozonolysis (b) Epoxidation (c) Polymerization (d) Esterfication (ii) The most stable carbonium ion is: (a) R3C + (b) R2CH+ (c) CH+ 3 (d) RCH + 2 (iii) The functional group in RSH is: (a) Alcohol (b) Thioalcohol (c) Carboxylic Acid (d) Ester (iv) Which of the following does not contain carboxyl group? (a) Acetic Acid (b) Benzoic Acid (c) Picric Acid (d) Butyric Acid (v) This compound gives SN1 mechanism: (a) Chloroethane (b) 2-chloro-2-methylpropane (c) Chlorobenzene (d) chloromethane (vi) This gas is used for welding purpose: (a) C2H2 (b) C2H4 (c) C2H6 (d) CH4 (vii) Dimethyl ether and Ethyl alcohol are: (a) Metamers (b) Cis-trans isomers (c) Functional group isomers (d) position isomers (viii) Polyester is the condensation polymer of: (a) Phenol & Formaldehyde (b) Ethylene glycol & terephthalic acid (c) Benzene & Picric Acid (d) Ozonide & Alcohol (ix) The percentage of carbon contents in Bituminous coal is: (a) 70-85 % (b) 70-85% (c) 45-60% (d) 90-95% (x) Alkylation of benzene in the presence of Lewis Acid gives: (a) Toulene (b) Phenol (c) Acetophenone (d) Benzoic Acid (xi) Cycloalkanes have general formula: (a) CnH2n+2 (b) CnH2n (c) CnH2n-2 (d) CnH2n+4 (xii) This is used to increase the octane number and efficiency of Petrol: (a) Vanadium Pentaoxide (V2O5) (b) Tetraethyl lead {Pb (C2H5)4} (c) Sulphuric Acid (H2SO4) (d) Platinum (Pt) (xiii) CH≡CH + H2 → CH2=CH2 + H2→ CH3–CH3 is change in hybridization state of carbon atom is: (a) sp3 → sp2 →sp (b) sp → sp2 → sp3 (c) sp2 → sp3 → sp (d) sp3 → sp → sp2 (xiv) The first step is similar in these mechanisms: (a) SN1 & E1 (b) E1 & SN2 (c) SN1 & E2 (d) E1 & E2 (xv) This compound obeys Markonikoff rule when reacting with HBr: (a) CH3 – CH3 (b) CH3–CH=CH – CH3 (c) CH2=CH2 (d) CH3–CH=CH2 (xvi) Suitable reagent required for the reduction of amides: (a) LiAlH4 (b) CH3OH (c) Ni (d) NH3 (xvii) Which of the following is NOT oxidized by KMnO4? (a) C8H18 (b) C2H2 (c) C2H4 (d) C3H6 ******
NEWTON’S INN COACHING CENTRE Mid Yearly Examination 2023-2024 Paper: - Chemistry Theory Time: 3hrs. H.S.C Part II (Science Group) Max Marks: - 68 Important Instruction: - This paper consisting of Short-Answer question (Section “B”) and Descriptive- Answer question (Section “C”) and its total duration will be 3 hours only. SECTION “B” (SHORT-ANSWER QUESTIONS) (36) Note: Attempt any NINE (09) questions from this section. Each question carries 04 marks. Q No 2. (i) Define the following: * Homologous Series * Functional Group * Catenation * Racemic Mixture (ii) (a) Define Isomerism. Draw the possible functional group isomers of C3H6O & C2H4O2. (b) Draw the cis-isomer & trans-isomers of 1,2 – dichloro ethene. (iii) Write a note on any one of the following: * Destructive Distillation of Coal * Reforming of Petroleum (iv) What is Functional Group? Predict the functional group present in the structures given below: * * * (v) The structure of three organic compounds “A”, “B” & “C” are show below: (A) (B) (C) * Draw the hydrid orbital structure of “A” showing bond. * Write equations for the preparation of “B” from Ethanol. * Write the equation for the reaction of “C” with ozone. * Draw the structure of cyclopropane. (vi) Define Free Radical. Give stepwise mechanism free radical reaction between methane and chlorine in the presence of sunlight. Why free radical reactions take place in the presence of sunlight? (vii) Give equations for the following reactions: (a) Reaction of chlorine with acetylene (b) Ethene reacts with chlorine water (c) Propene reacts with hydrogen iodide (d) Ethene burnt in air in presence of per acetic acid (viii) (a) Describe the natural sources of organic compounds. (b) Differentiate between Aliphatic and Aromatic Hydrocarbon. (ix) Give chemical test to distinguish between the following: * Ethene & Ethyne * 1-Butyne and 2-Butyne * Paraffin & Olefin * Ethane and Ethyl Chloride (x) What are alkyl halides? Classify them with one example of each. Draw the orbital structure of CH3Cl. (xi) (a) Write the structural formula of the following: * Picric Acid * Resorcinol * 3-chlorobenzamide * Divinyl acetylene (b) Identify the give hydrocarbons as saturated & un-saturated: C8H18, C20H42, C7H12, C3H6. (xii) (a) How is the primary amine converted into secondary & tertiary amines, give the equations? (a) Give an account on the basicity of amines. (xiii) Write equation only for the following conversions: (a) Benzene to Nitro-Benzene (b) Ethanol to Ethyl chloride (c) Ethyne to Glyoxal (d) Ethene to Ethyl Alcohol (xiv) (a) State Markownikoff’s rule. Give equation for the reaction b/w vinyl bromide & hydrogen bromide. (b) Define a chiral carbon? Give an example to justify your answer. SECTION “C” (DETAILED-ANSWER QUESTIONS) (32) Note: Attempt any TWO (02) questions from this section. Q No 3.(a) Explain Electrophilic substitution in benzene with reference to Friedal-Craft’s Acylation & Sulphonation. (b) Outline the stepwise reaction mechanism of the SN1 reaction between NaCN & 2-chloro-2methyl propane. Q No 4.(a) Describe Kekule structure of benzene. Write the objection against it. How was this objection removed? (b) (i) Write the I.U.P.A.C names of the following compounds: * (CH3)2.C.Br.CHO * CH3 (CH2)3-COOC (CH3)3 * (CH3)3.C.OH * (CH3)2CHCOC (CH3)3 (ii) Complete and balance the following equations: * CH2 = CH2 + O3→ * CH3CH2OH + SOCl2 → * Q No 5.(a) What are organometallic compounds? How is Grignard Reagent prepared? Write down the reactions of reagent with water, carbon dioxide, ester and amines. (b) What is β-elimination? Discuss the mechanism of E1 and E2 reactions. ******
NEWTON’S INN COACHING CENTRE Mid Yearly Examination 2023-24 Paper: - Pakistan Studies Time: 15 Minutes CLASS H.S.C Part II CODE: - PST-XII Section “A” (Compulsory) Multiple Choice Questions (M.C.Qs) Max Marks: 10 Note: (a) Attempt all the questions. (b) Each question carries 01 mark. (c) Copy answer on your answer copy. (d) Do not write anything on this paper. Q1 Choose an appropriate answer from the options provided. (i) The height of the highest peak of the Karakoram (K-2) is: (i(وک ہ رقارقم یک دنلب رتنی وچیٹ ےک ۔وٹ اےنت رٹیم ےہ: *8611m * 9911m * 6911m * 8011m (ii) In 1945, the party took power in England and sent a cabinet mission: (ii(5491 ںیم ااتسلگنن ںیم اس اپریٹ ےن ادتقار اھبنسل رک اکہنیب نشم رواہن ایک: *Liberal Party * Labour Party * Conservative Party * Cabinet Party (iii) He started the Quit India Movement: (iii(دنہواتسن وھچڑ دو رحتکی اوہنں ےن رشوع یک: * Choudhary Rehmat Ali * Quaid-e-Azam * Nehru * Gandhi (iv) Partition of Bengal was annulled in: (iv(میسقت اگنبل یک خیسنت اس نس ںیم وہیئ: * 6091 * 6090 * 6091 * 6066 (v) Quaid-e-Azam demanded to implement reforms in Frontier Province: (v(اقدئامظع ےن وصہب رسدح ںیم االصاحت انذف رکےن اک اطمہبل ایک: *1928 * 1927 * 1925 * 1926 (vi) "Ach Sharif" was the center of the elders of this chain: (vi"(اچ رشفی" اس ےلسلس ےک زبروگں اک رمزک اھت: *Qadriya * Qalandarya * Sehrwardiya * Naqshbandiya (vii) East Pakistan became Bangladesh on: (vii(رشمیق اپاتسکن ہلگنب دشی بک انب: *15th Dec 1971 * 16th Dec 1971 * 17th Dec 1971 * 18th Dec 1971 (viii) Quaid-e-Azam took over the leadership of the Muslim League: (viii(اقدئا مظع ےن ملسم گیل یک ایقدت اھبنسیل: *1935 * 1934 * 1938 * 1937 (ix) The name of the pass connecting Kabul and Peshawar is: (ix(اکلب اور اشپور وک المےن واےل درے اک انم ےہ: *Bolan Pass * Khyber Pass * Lorai Pass * Muri Pass (x) At the time of independence, the total forest area was only 3.2% which has now increased to: (x(آزادی ےک وتق الگنجت اک لک رہبق رصف 3.2دصیفاھت وج اب ڑبھ رک وہایگ ےہ: *4.5% * 4.8 % * 5.0% * 5.2% *******
NEWTON’S INN COACHING CENTRE Mid Yearly Examination 2023-24 Paper: - Pakistan Studies Time: 1hr 45mins Class H.S.C Part II Max Marks: - 40 Important Instruction: - This paper consisting of Short-Answer question (Section “B”) and Descriptive- Answer question (Section “C”) will be given after 15 minutes and its total duration will be 1hr 45 mins only. SECTION “B” (SHORT ANSWER QUESTION) Marks: 24 Note: Attempt any six (06) part questions. All question carry equal marks. Q.2 (i) What is meant by the Indus Basin Treaty? (i (دنسھ اطس اعمدہہ ےس ایک رماد ےہ؟ (ii) Write the salient features of Allama Iqbal’s Presidential address at Allahabad. (ii (العہم اابقل ےک ہبطخ دصارت اہل آابد ےک اخص اکنت رحتری ےئجیک۔ (iii) Define the 3rd June Plan. (iii (3 وجن اک وصنمہب ایبن ےئجیک۔ (iv) Write the importance of Objectives Resolution in the constitution making of Pakistan. (iv (اپاتسکن یک دوتسر اسز ی ںیم رقاردا ِداقمدص یک اتیمہ رحتری ےئجیک۔ (v) Write any four natural resources of Pakistan. (v (اپاتسکن ےک وکیئ اچردقریت واسلئ رحتری ےئجیک۔ (vi) Write down the important points of the Indian Independence Act 1947. (vi (اقونن ِِ آزادی دنہ 5491 ےک امہ اکنت ایبن ےئجیک۔ (vii) Name the event took place in following years: (vii (دنمرہج ذلی اسولں ںیم وہےن وایل رقتبی اک انم اتبںیئ۔ * 1916 * 1942 * 1932 * 1940 (viii) State any four contributions of Hazrat Mujadid Alf Sani ِ in revival of Islam. (viii (اایحےئ االسم ںیم رضحت دجمدافل اثین یک وکیئ اچر دخامت ایبن رکںی۔ (ix) Explain the geographical and political importance of the regions of Pakistan. (ix (اپاتسکن ےک لحم و وقع یک رغجاایفیئ اور ایسیس اتیمہ ایبن ےئجیک۔ SECTION “C” (DESCRIPTIVE ANSWERS QUESTIONS) Marks: 16 Note: Attempt any two (02) part questions. All question carry equal marks. Q.3 Explain the role of Aligarh movement in Pakistan movement & what were the main aims and objectives of Aligarh movement. .3Qرحتکی اپاتسکن ںیم یلع ڑگھ رحتکی ےک رکدار یک واضتح رکںی اور یلع ڑگھ رحتکی ےک اینبدی ارغاض و اقمدص ایک ےھت؟ Q.4 What role played by the Muslim League in the creation of Pakistan? .4Qاپاتسکن انبےن ںیم ملسم گیل ےن ایک رکدار ادا ایک؟ Q.5 What problems did Pakistan face immediately after its establishment? .5Qاےنپ ایقم ےک وفراًدعب اپاتسکن وک نک اسملئ اک اسانم رکان ڑپا۔