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Waraqaalee qormaataa

Qormaata galuumsa kutaa 12ffaa Keemistirii, bara 2014 A.L.I (2022)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Keemistirii, akkuma barattoonni bara 2014 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2014 A.L.I (2022)

    Bara qormaataa

  • Gaaffilee 58 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

What is the difference between reversible and irreversible reactions?

  1. A.In reversible reactions, the reaction goes to completion.
  2. B.In irreversible reactions, there is a mixture of products and reactants.
  3. C.In reversible reactions, there is equilibrium between reactants and products.
  4. D.In irreversible reactions, there is equilibrium between reactants and products.
Deebii fi ibsa ilaalaa

Deebii: C In reversible reactions, there is equilibrium between reactants and products.

Maaliif

In a reversible reaction, reactants and products coexist in a state of dynamic chemical equilibrium where the forward and reverse reactions occur at equal rates, unlike irreversible reactions which go to completion.

Gaaffii 2

Consider the reactions all given below are in gaseous state. For which of the following reactions is K p less than K c ?

  1. A.N 2 O 4 ⇌ 2NO 2
  2. B.2SO 2 + O 2 ⇌ 2SO 3
  3. C.2H 2 ⇌ H 2 + I 2
  4. D.N 2 + O 2 ⇌ 2NO
Deebii fi ibsa ilaalaa

Deebii: B 2SO 2 + O 2 ⇌ 2SO 3

Maaliif

The relationship between the equilibrium constants is given by Kp=Kc(RT)ΔnK_p = K_c(RT)^{\Delta n}. For reaction B (2SO2+O2⇌2SO32SO_2 + O_2 \rightleftharpoons 2SO_3), the change in moles of gas is Δn=2−3=−1\Delta n = 2 - 3 = -1, which makes Kp<KcK_p < K_c.

Gaaffii 4

The general formula for saturated monocarboxylic acids is

  1. A.RCOOH
  2. B.RCOR
  3. C.RCHO
  4. D.ROR
Deebii fi ibsa ilaalaa

Deebii: A RCOOH

Maaliif

Saturated monocarboxylic acids (also known as alkanoic acids) contain one carboxyl group (-COOH) attached to an alkyl group, represented by the general formula RCOOH.

Gaaffii 5

What is enthalpy change? It is

  1. A.the amount of heat given out or absorbed in a reaction at constant pressure and volume
  2. B.the amount of heat absorbed in a reaction
  3. C.the amount of heat given out in a reaction
  4. D.the amount of heat given out or absorbed in a reaction at constant pressure
Deebii fi ibsa ilaalaa

Deebii: D the amount of heat given out or absorbed in a reaction at constant pressure

Maaliif

Enthalpy change (ΔH\Delta H) is defined as the amount of heat energy absorbed or released by a chemical system during a process occurring at constant pressure (qp=ΔHq_p = \Delta H).

Gaaffii 6

What is oxidation? Oxidation is

  1. A.the addition of electron(s) to the oxidizing agent
  2. B.the reduction of the oxidation state of the oxidizing agent
  3. C.the addition of hydrogen to a substance and the removal of oxygen from a substance
  4. D.the loss of electrons by a species, accompanied by an increase in oxidation number
Deebii fi ibsa ilaalaa

Deebii: D the loss of electrons by a species, accompanied by an increase in oxidation number

Maaliif

Oxidation is defined as the process in which an atom, ion, or molecule loses one or more electrons, which corresponds to an increase in its oxidation number.

Gaaffii 7

What is meant by preferential discharge, if a number of ions are present in a solution? It means that the one which requires

  1. A.highest energy will be liberated first at a given electrode
  2. B.highest energy will be liberated last at a given electrode
  3. C.least energy will be liberated first at a given electrode
  4. D.least energy will be liberated last at a given electrode
Deebii fi ibsa ilaalaa

Deebii: C least energy will be liberated first at a given electrode

Maaliif

Preferential discharge refers to the selective reduction or oxidation of ions at an electrode during electrolysis; the ion that requires the least energy to gain or lose electrons is discharged first.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 58 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 58 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)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)2008 A.L.I (2016)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 2014 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Keemistirii barattoonni bara 2014 A.L.I (2022) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 58 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 2014 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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