222- According to the figure below, in an Erlenmeyer flask on the left, 200 mL of 0.1 molar HCl solution reacts with a sufficient amount of $\text{MnO}_2$ and produces gas. The gas produced, after passing from the left Erlenmeyer flask, enters the right Erlenmeyer flask containing 100 mL of KBr solution and the reaction goes to completion. What was the initial molarity of the KBr solution? $(H = 1,\ Cl = 35.5,\ Br = 80\ \text{g.mol}^{-1})$
[Figure: Two Erlenmeyer flasks connected by a tube; left flask contains $\text{HCl} + \text{MnO}_2$, right flask contains KBr]

(1) $0.1$		(2) $0.2$
(3) $0.15$		(4) $0.25$

223- By adding a sufficient amount of sodium hydroxide solution to a pure solid sample of one substance, this substance reacts and forms only one colorless solution. Which compound can this solid be?

(1) $\text{CaCO}_3$

(2) $\text{CuSO}_4$

(3) $\text{Fe(NO}_3)_2$

(4) $\text{NaHCO}_3$

224- For the hypothetical reaction: $\text{M}^+(\text{aq}) + \text{X}^-(\text{aq}) + \text{OH}^-(\text{aq}) \rightarrow \text{MOH}(\text{aq}) + \text{X}^-(\text{aq}) + \text{M}(\text{aq})$, the rate law is:
$$\bar{R} = k[\text{X}][\text{OH}^-]^2$$
By changing the pH of the solution from 10 to 14 (by adding $\text{NaOH(s)}$) and keeping the concentration of $\text{X(aq)}$ constant, the reaction rate becomes how many times?

(1) $2$

(2) $4$

(3) $10^2$

(4) $10^4$

225- In collision theory, which case has been ignored?

1. Reactions of simple substances and gases
2. Formation of complex intermediates during the reaction
3. Assuming reacting particles as hard spheres
4. The role of the number of particles (per unit volume) in increasing the reaction rate

226- In a moving car, which diagram best shows the reaction rate situation, indicating the equilibrium production rate of $\text{NO(g)}$ in the first moment of burning gasoline inside the cylinder?
[Figure: Four pairs of diagrams (1)--(4), each showing two circular gauges labeled M (middle), S (left), F (right) with arrows indicating ``reverse'' (برگشت) and ``forward'' (رفت) rates:
(1) Both gauges: reverse arrow pointing left-down, forward arrow pointing right; rates appear equal and moderate.
(2) Both gauges: reverse arrow pointing left, forward arrow pointing right; forward rate higher than reverse.
(3) Both gauges: reverse arrow pointing left, forward arrow pointing up; forward rate higher.
(4) Both gauges: reverse arrow pointing up, forward arrow pointing up; rates appear equal and high.]
Calculation Space
%% Page 24 Chemistry 120-C Page 23

227- 5 mol of $\mathrm{CO(g)}$ with 16g of $\mathrm{H_2(g)}$ in a closed lithium vessel, according to the equation: $$\mathrm{CO(g) + 2H_2(g) \rightleftharpoons CH_3OH(g)}$$ are introduced and the reaction proceeds. If after half an hour 96g of methanol is produced, and the reaction reaches equilibrium, the average rate of consumption of $\mathrm{H_2(g)}$, in $\mathrm{mol.L^{-1}.s^{-1}}$, and the value of K in units of $\mathrm{L^2.mol^{-2}}$, which is correct? $$(H = 1,\ C = 12,\ O = 16 : \mathrm{g.mol^{-1}})$$
(1) $9/375\ ,\ 6/67\times10^{-4}$ (2) $9/375\ ,\ 2/78\times10^{-4}$ [6pt] (3) $3/75\ ,\ 2/78\times10^{-4}$ (4) $3/75\ ,\ 6/67\times10^{-4}$

228- Considering the equilibrium reaction: $\mathrm{FeO(s) + CO(g) \rightleftharpoons Fe(s) + CO_2(g)}$, which occurs at a certain temperature in a closed vessel of one liter, and starting from one mole of each reactant, if the mole fraction of CO gas is 0.5 at equilibrium, the equilibrium constant and the amount of $\mathrm{Fe(s)}$ present at equilibrium, how many grams? (Read the options from right to left.) $$(\mathrm{Fe = 56\ g.mol^{-1}})$$
(1) $5/32\ ,\ 0/95$ (2) $53/2\ ,\ 0/95$ (3) $5/32\ ,\ 19$ (4) $53/2\ ,\ 19$

229- Considering the data in the figure below, which shows the amount of reactants and products at equilibrium at a certain temperature in a closed vessel of one liter, and if we can keep the volume of the vessel constant at a fixed temperature, what will happen to the equilibrium upon decreasing? (All substances are gaseous.)
[Figure: A container showing reactants and products with: $0.8\ \mathrm{mol}\ A_2$ $0.8\ \mathrm{mol}\ X_2$ $0.04\ \mathrm{mol}\ AX$ on the reactants side and products side]

1. [$\mathbf{(1)}$] $2.5\times10^{-3}$, equilibrium is maintained.
2. [$\mathbf{(2)}$] $1.66\times10^{-3}$, equilibrium is maintained.
3. [$\mathbf{(3)}$] $2.5\times10^{-3}$, equilibrium shifts in the forward direction.
4. [$\mathbf{(4)}$] $1.66\times10^{-3}$, equilibrium shifts in the reverse direction.

230- Considering the reaction: $\mathrm{CN^-(aq) + HSO_4^-(aq) \rightarrow HCN(aq) + SO_4^{2-}(aq)}$, which statement is correct?

1. [1)] The $\mathrm{HSO_4^-}$ ion acts as the conjugate base of the sulfate ion in this reaction.
2. [2)] According to the Lowry--Brønsted theory, $\mathrm{HCN}$ acts as a base in this reaction.
3. [3)] The conjugate acid of the sulfate ion is stronger than the conjugate acid of cyanide.
4. [4)] Phenolphthalein indicator in a dilute solution of $\mathrm{CN^-}$ ion in water is colorless.

\rule{8cm}{0.4pt} Calculation Space
%% Page 25 Chemistry 120-C Page 24

231 – If to $50\,\text{mL}$ of a $1\,\text{mol/L}$ solution of weak acid (HA), drops from a $1\,\text{mol/L}$ NaOH solution are added, which statement is correct?

1. The salt produced from the reaction of acid and base in this reaction is neutral.
2. The initial pH of solution HA is independent of $K_a$ and equals zero.
3. During the reaction, until complete neutralization, buffering property is not observed.
4. By adding $50\,\text{mL}$ of NaOH solution, the pH of the solution will be greater than 7.

232 – A species of fish can survive in pH between 6 and 8. If the volume of the aquarium for keeping this fish is $20\,\text{L}$, and the neutral condition holds, adding which of the following will cause the death of the fish?

1. $0.1$ mol aluminum oxide $\text{Al}_2\text{O}_3(\text{s})$
2. $100\,\text{mL}$ of solution $10^{-4}\,\text{mol/L}$ hydrochloric acid
3. $100\,\text{mL}$ of solution $0.01\,\text{mol/L}$ sodium hydroxide
4. $50\,\text{mL}$ of solution $8\times10^{-3}\,\text{mol/L}$ sodium acetate $\left(K_b = 6\times10^{-10}\right)$

233 – By adding a few drops of indicator .................. to the solution around the electrode .................. in an electrochemical cell, during operation (with graphite electrodes and the electrolyte being a $1\,\text{mol/L}$ potassium iodide solution), the color of the solution around this electrode turns .................. .
$$K^+(\text{aq}) + e^- \to K(\text{s}) \qquad E^\circ = -2.92\,\text{V}$$ $$2H_2O(\text{l}) + 2e^- \to H_2(\text{g}) + 2OH^-(\text{aq}) \quad E^\circ = -0.83\,\text{V}$$ $$I_2(\text{s}) + 2e^- \to 2I^-(\text{aq}) \qquad E^\circ = +0.54\,\text{V}$$ $$O_2(\text{g}) + 4H^+(\text{aq}) + 4e^- \to 2H_2O(\text{l}) \quad E^\circ = +1.23\,\text{V}$$

1. methyl red – cathode – yellow
2. methyl red – anode – purple
3. phenolphthalein – cathode – red
4. phenolphthalein – anode – purple

234 – If in a dry cell, methanol is used as fuel, the sum of the values x, y, and z in the half-reaction: $$a\,CH_3OH(\text{l}) + b\,H_2O(\text{l}) \to x\,CO_2(\text{g}) + y\,H^+(\text{aq}) + ze^-$$ what is the value from balancing?
(1) $6$ (2) $7$ (3) $12$ (4) $13$

235 – Which statement is correct?

1. In the standard hydrogen electrode, platinum acts as the anode.
2. In oxidation 2 – propanol, acetone is produced which is a ketone.
3. In the «hydrogen–oxygen» fuel cell, the volume of gas consumed at the anode and cathode at STP conditions is equal.
4. From the reaction of one mole of formaldehyde with two moles of Cu(II) sulfate, one mole of oxalic acid and two moles of copper metal are obtained.

\rule{10cm}{0.4pt}
Calculation Space

1 -A Arabic Language

1
Arabic 12-D Page 7

2
* داوطلب گرامی، عدم درج مشخصات و امضاء در مندرجات جدول ذیل، به منزله عدم حضور شما در جلسه آزمون است.

|} اینجانب...............................................با شماره داوطلبی.....................با آگاهی کامل،یکسان بودن شمارهٔ

صندلی خود را با شماره داوطلبی مندرج در بالای کارت ورود به جلسه، بالای پاسخنامه و دفترچهٔ

سؤالات، نوع و کدکنترل درج شده بر روی دفترچهٔسؤالات وپایین پاسخنامهام را تأیید مینمایم.

امضاء:

1. معنی واژهٔ مشخص شده در کدام جمله، درست است؟
   1. [(1)] هنر فایق آن است که دشمن آن را اعتراف کند: (ناپسند)
   2. [(2)] حمیّت نفس آن رخصت ندهد که با هر ناسازی در سازد: (اراده)
   3. [(3)] در خبط برتری جویی به فریب سراب بادیهٔ آمال در افتادم: (خیال)
   4. [(4)] زخم منجنیق حوادث از این حصار بلند پیدرپی میآید: (ضربه و آسیب)
   
   
2. تمام معانی مقابل کدام واژهها، درست است؟
   الف) اهمال: فرو گذاشتن، سستی کردن در کاری، درنگ
   ب) فرض: واجب شده، تعیینکننده، واجب گردانیدن
   ج) ایما: اشاره کردن، رمز، به وهم افکندن
   د) جولاهه: بافنده، نسّاج، عنکبوت
   

   (1) الف، ج

   (2) الف، د

   (3) ب، ج

   (4) ب، د

   
   
3. کدام واژهها بهترتیب در معانی: «همنشینی، آزمون، موشگیر، جبّه» کاربرد دارد؟
   1. [(1)] مصاحبت، عیار، صعوه، ردا
   2. [(2)] صحبت، شمار گرفتن، زغن، درزه
   3. [(3)] صحبت، عیار، زغن، درّاعه
   4. [(4)] مصاحبه، شمار گرفتن، قمری، درّاعه
   
   
4. در میان واژگان زیر چند غلط املایی وجود دارد؟
   «مدح و ذم ــ قنا و قداست ــ پروندهٔ علی هده ــ انزجار و نفرت ــ بُرحه و مرحله ــ رزل و ناجنس ــ سخنان مذبور ــ بحبوحهٔ کار ــ سطوت سلطنت»
   

   (1) دو

   (2) سه

   (3) چهار

   (4) پنج

   
   
5. در متن زیر چند غلط املایی وجود دارد؟
   «چند در این منزل ستوری مقام کنی و پای بستهٔ صفات ضمیمهٔ شیطنت باشی و بـه مزخرفـات نعـیم دنیـاوی در جوال غرور شیطان شوی؟ برخیز و پایبند برهمگسل و قدم از این منازل و مراحل خوش آمد دنیـا و هـوا و تبـع بیرون نه و بادیهٔ نفس امّاره را قطع کن.»
   

   (1) یک

   (2) دو

   (3) سه

   (4) چهار

   
   
6. جلال رفیع در کدام نوشتهٔ خود پرگویی را یکی از آفات اجتماعی معرّفی میکند؟ لحن این نوشته چگونه است؟
   1. [(1)] مایع حرفشویی ــ طنزگونه
   2. [(2)] مایع حرفشویی ــ رسمی
   3. [(3)] در بهشت شدّاد ــ طنزگونه
   4. [(4)] فرهنگ مهاجم، فرهنگ مولّد ــ جدّی
   
   

www.riazisara.ir
%% Page 4
112-D Persian Language and Literature

4
Part A: Grammar and Vocabulary Directions: Questions 76-87 are incomplete sentences. Beneath each sentence you will see four words or phrases marked (1), (2), (3), and (4). Choose the one word or phrase that best completes the sentence. Then mark your answer sheet.
\begin{description}

[76-] The birthday gift I love most is actually a/an --------- clock.
1) wonderful big old Italian wooden 2) big old wonderful Italian wooden
3) wonderful big old wooden Italian 4) old wonderful big Italian wooden

[77-] In the morning the streets were flooded. There --------- a heavy rainstorm during the night.
1) was going to be 2) should have been 3) must have been 4) could be

[78-] To be able to afford university fees, it was necessary for both Peggy and his little brother --------- at a restaurant part time.
1) works 2) to work 3) who work 4) they work

[79-] The new television series --------- after the book The Ascent of Man by Bronowski has been warmly welcomed.
1) which named 2) it was named 3) was named 4) named

[80-] Every team is made up of a number of --------- each having a specific responsibility.
1) sports 2) contacts 3) individuals 4) relationships

[81-] You look very similar to me, but I don't --------- your name now.
1) realize 2) recall 3) express 4) speculate

[82-] Don't take John's comment ---------; he did not mean what he actually said.
1) properly 2) strongly 3) seriously 4) terribly

[83-] As a student, you should --------- any fear you might have and take part in classroom discussions as much as possible.
1) release 2) suffer 3) separate 4) overcome

[84-] My mother always gets a bit --------- if we don't arrive when we say we will.
1) aware 2) anxious 3) advisable 4) concentrated

[85-] I have the greatest --------- for his ideas, although I don't agree with them.
1) respect 2) sense 3) stance 4) permission

[86-] It is difficult to know whether these results can be ---------, since they rely on only two small companies studied only for a period of six months.
1) generalized 2) suggested 3) evaluated 4) ignored

[87-] Under the ---------- conditions many children are going hungry; hence, such conditions must be changed.
1) including 2) predicting 3) existing 4) comparing \end{description}
Part B: Cloze Test Directions: Questions 88-92 are related to the following passage. Read the passage and decide which choice (1), (2), (3), or (4) best fits each space. Then mark your answer sheet.
A similar process takes place when you listen to someone (88) --------- your native language. You don't need to concentrate on every word they say. Unfortunately, (89) --------- we can usually quite easily transfer our reading skills from our own (90) --------- into another, we cannot transfer our listening skills---particularly in the (91) --------- of the English language. English often sounds like one long flow of sounds and (92) --------- to hear the separations between one word and the next.
%% Page 16 Page 1 112-D English Language

5

\begin{tabular}{lllll}

7. The works listed below, in order, belong to whom? ``Santamaria, in the Small Garden of Autumn in Tehran, a Lane to the House of the Sun''

1. Mohammad Bahman Beigi, Seyyed Hassan Hosseini, Mehrdad Avesta, M. Sarsak
2. Seyyed Mahdi Shajae'i, Ikhwan Thaleth, Mohammadreza Rahmani, Salman Harati
3. Bastani Parizzi, Sohrab Sepehri, Shafi'i Kadkani, Salman Harati
4. Ahmad Oroublu, M. Omid, Siavash Kasraei, Qeysar Aminpour

7. Which of the following works, in order, belongs to the literary genre and the creators of these works: ``The heroes of Dasht-e Khon, Morsad al-Ebad, Kelileh va Demneh''?

• [(1)] Payedari, Parviz Khorsand (lyric); Abu Sa'id Abul-Khayr (narrative); Ibn Moqaffa'
• [(2)] Payedari, Parviz Khorsand (lyric); Najm al-Din Razi (educational); Nasrallah Monshi
• [(3)] Enqelab, Parviz Khorsand (epic); Najm al-Din Kobra (narrative); Nasrallah Monshi
• [(4)] Enqelab, Hamid Reza Talegani (educational); Najm Daye (educational); Nasrallah Monshi

8. In which option is the simile's face (vehicle) not mentioned?

1. Like a heart wounded, falling to the chest like a pipe and tar
2. Like a cheek flushed, being the color of the earth
3. The world's caravans have thousands of laments
4. In the path of love, you are the famous good-natured one like a candle

\begin{minipage}{0.45\textwidth} \raggedright هــر گـــه کـــه یـــاد طـــرّهٔ پیچـــان کنـــد تـــو را چـــون دم مـــن شـــده اســـت طبـــع زمـــان کـــه یـــک نـــی دیـــد از شکرسـتانی؟ شـبنشـین کـوی سـربازان و رنـدانم چـو شـمع \end{minipage}

8. Which work is currently ``completely'' available?

• [(1)] Bada'i al-Waqa'i, Hayat Yahya, Ruzha, al-Ayyam
• [(2)] Az Paris ta Paris, Sirat Rasul Allah, Lobab al-Albab, Ruzha
• [(3)] Qesas al-Anbiya, Ghazali-nameh, my universities, Tadhkirat al-Awliya
• [(4)] Sharh-e Zendegani-ye Man, Bada'i al-Waqa'i, Farar az Madreseh, Pelleh ta Molaghatha-ye Khoda

9. In the verse below, which literary devices are used? ``The place of laughter is the sweet speech of the sweetest lips''

1. Metaphor, ambiguity, allusion, allusion
2. [(2)] Simile, ambiguity, metaphor, allusion, harmony
3. Metaphor, ambiguity, appropriateness, allusion, contradiction
4. [(4)] Simile, ambiguity, metaphor, appropriateness, ambiguity, harmony

\begin{minipage}{0.45\textwidth} \raggedright «که آب شیرین چو بخندی برود از شکرت»
(2) تشبیه، ایهام، مجاز، حسن تعلیل
(4) تشبیه، ایهام، استعاره، ایهام تناسب \end{minipage}

9. Which of the following arrangements of the verse below is correct?
``The place of laughter is speaking the sweetest words'' ``like water, sweet as flowing away from sugar''

• [(1)] Metaphor, simile, allusion, allusion
• [(2)] Simile, simile, pun, good taste, allusion
• [(3)] Metaphor, appropriate pun, allusion, antithesis
• [(4)] Simile, pun, metaphor, appropriate pun, pun