Bu'aan kutaa 12ffaa ba'eera; bu'aa kee eessatti akka ilaaltu

Waraqaalee qormaataa

Qormaata galuumsa kutaa 12ffaa Keemistirii, bara 2008 A.L.I (2016)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Keemistirii, akkuma barattoonni bara 2008 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2008 A.L.I (2016)

    Bara qormaataa

  • Gaaffilee 68 deebii waliin

    Kuusaa kana keessa

Gaaffilee qormaata kanaa yaalaa

Deebii banuun dura tokkoon tokkoon gaaffii ofii keessaniin deebisaa. Ibsi gara kutaa kitaaba barnootaa sirriitti waan qajeelchuuf, yeroo gaaffii dogoggortan fuula kam irra deebi'uu akka qabdan ni beektu.

Gaaffii 1

A drug decomposes by zero-order kinetics with a rate constant of 2 mgmL−1 month−12\,\mathrm{mgmL^{-1}}\ \mathrm{month^{-1}}. If the initial concentration is 100 mgmL−1100\,\mathrm{mgmL^{-1}}, how long will it take for the drug to decompose by 10%?

  1. A.2 months
  2. B.3 months
  3. C.5 months
  4. D.4 months
Deebii fi ibsa ilaalaa

Deebii: C 5 months

Maaliif

For a zero-order reaction, the amount decomposed is given by x = k * t. A 10% decomposition of 100 mg/mL corresponds to 10 mg/mL, so t = (10 mg/mL) / (2 mg/(mL*month)) = 5 months.

Gaaffii 2

The value of Keq\mathrm{K_{eq}} for the following reaction is 0.25. SO2 (g)+NO2(g)⇌2SO3(g)+NO (g)\mathrm{SO_2\ (g) + NO_2(g) \rightleftharpoons 2SO_3(g) + NO\ (g)} What is the value of Keq at the same temperature for the reaction below? 2SO2 (g)+2NO2 (g)⇌2SO3 (g)+2NO (g)\mathrm{2SO_2\ (g) + 2NO_2\ (g) \rightleftharpoons 2SO_3\ (g) + 2NO\ (g)}

  1. A.0.25
  2. B.0.062
  3. C.0.50
  4. D.16
Deebii fi ibsa ilaalaa

Deebii: B 0.062

Maaliif

Multiplying the coefficients of an equilibrium reaction by a factor of 2 squares the equilibrium constant, so Keq' = (0.25)^2 = 0.0625, which rounds to 0.062.

Gaaffii 3

Which of the following would react to form pentyl ethanoate?

  1. A.1- propanol and pentanoic acid
  2. B.Ethanol and pentanoic acid
  3. C.1- pentanol and ethanoic acid
  4. D.Ethanol and ethanoic acid
Deebii fi ibsa ilaalaa

Deebii: C 1- pentanol and ethanoic acid

Maaliif

Pentyl ethanoate is an ester formed by the Fischer esterification of 1-pentanol (providing the pentyl group) and ethanoic acid (providing the ethanoate group).

Gaaffii 4

Which of the following is correct when 34495 is rounded to three significant figures?

  1. A.345
  2. B.34500
  3. C.344
  4. D.3840
Deebii fi ibsa ilaalaa

Deebii: B 34500

Maaliif

Rounding 34495 to three significant figures requires looking at the fourth digit (9), which rounds the third digit (4) up to 5, resulting in 34500.

Gaaffii 5

What is the first step of the scientific method?

  1. A.Making observations
  2. B.Forming a hypothesis
  3. C.Performing an experiment
  4. D.Predicting the result of an experiment
Deebii fi ibsa ilaalaa

Deebii: A Making observations

Maaliif

The scientific method traditionally begins with making observations about a phenomenon, which then leads to asking a question and formulating a hypothesis.

Gaaffii 7

What is the distance that a radio wave will travel in 0.250sec?

  1. A.1.2×1071.2 \times 10^{7}m
  2. B.12×10712 \times 10^{7}m
  3. C.7.5×1077.5 \times 10^{7}m
  4. D.5.6×1075.6 \times 10^{7}m
Deebii fi ibsa ilaalaa

Deebii: C 7.5×1077.5 \times 10^{7}m

Maaliif

Radio waves travel at the speed of light (c = 3.0 x 10^8 m/s). The distance traveled in 0.250 s is (3.0 x 10^8 m/s) * 0.250 s = 7.5 x 10^7 m.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 68 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 52 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.

Bilisa; herregas hin gaafatu.

Waraqaa gaaffiiFurtuu deebii fi ibsa

Qormaata guutuu sa'aatiin daangeffamee hojjedhaa

Herregni Temari bilisaa qormaata Keemistirii guutuu fi kan waggoota biroo hunda qormaatilee fakkeenyaa sa'aatiin daangeffaman godhee qabxii battalumaa waliin isiniif kenna. Bilbila kamiyyuu irratti, walitti hidhamiinsa laafaa irrattillee ni hojjeta.

Bilisaan shaakaluu jalqabaa

Qormaatilee Keemistirii kan waggoota biroo

2018 A.L.I (2026)2017 A.L.I (2025)2016 A.L.I (2024)2015 A.L.I (2023)2014 A.L.I (2022)2013 A.L.I (2021)2012 A.L.I (2020)2011 A.L.I (2019)2010 A.L.I (2018)2009 A.L.I (2017)2007 A.L.I (2015)2006 A.L.I (2014)2005 A.L.I (2013)

Qormaata kana taa'uu dura Keemistirii qayyabadhu

Yaadannoon gabaabaan Keemistirii kutaa 12 kaardii 22 qaba. Tokkoon tokkoon boqonnaa boqonnaadhaan kitaaba biyyaalessaa irraa qophaa'ee seericha, mallattoowwan isaa maal bakka akka bu'an fi dogoggora qabxii nama dhabsiisu ni ibsa.

Yaadannoo Keemistirii bani
Kunneen gaaffilee dhugaa qormaata galuumsa Keemistirii bara 2008 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Keemistirii barattoonni bara 2008 A.L.I (2016) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 68 qaba; tokkoon tokkoon isaanii deebii fi ibsa gara kitaaba barnootaatti qajeelchu qabu.

Qormaata guutuu akkamittan shaakala?

Lakkoofsa bilbilaatiin herrega bilisaa banadhaa. Qormaatichi guutuun qormaata fakkeenyaa sa'aatiin daangeffame ta'ee qabxii battalumaa kenna; fooyya'iinsi gargaaraa AI ji'atti qarshii 199 kan ta'e waan isin jalaa darbe hunda isinii ibsa.

Qormaata Keemistirii bara 2008 A.L.I PDF dhaan buufachuu nan danda'aa?

Eeyyee; bilisas. Waraqaan gaaffii faayilii tokko, furtuun deebii ibsa isaa waliin immoo faayilii biraa ti; kanaaf qormaata dursitanii yaaluu dandeessu. Maxxansaa, yookiin yeroo daataan hin jirre irra deebiif bilbila keessan irratti kaa'adhaa.

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