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

Waraqaalee qormaataa

Qormaata galuumsa kutaa 12ffaa Keemistirii, bara 2011 A.L.I (2019)

Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Keemistirii, akkuma barattoonni bara 2011 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.

Bilisaan shaakaluu jalqabaaWaraqaa gaaffii

  • Damee saayinsii uumamaa

    Eenyutu fudhata

  • 2011 A.L.I (2019)

    Bara qormaataa

  • Gaaffilee 77 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 aspect of the modern view of atomic structure was proved by Rutherford's gold foil experiment?

  1. A.The existence of the nucleus.
  2. B.The charge on an electron.
  3. C.The charge on an α\alpha particle.
  4. D.The existence of electrons.
Deebii fi ibsa ilaalaa

Deebii: A The existence of the nucleus.

Maaliif

Rutherford's gold foil experiment showed that alpha particles could be deflected at large angles, proving the existence of a dense, positively charged nucleus at the center of the atom.

Gaaffii 2

Which of these compounds is propanoic acid?

  1. A.CH₃CH₂COOCH₃
  2. B.CH₃CH₂COH
  3. C.CH₃CH₂CH₂OH
  4. D.CH₃CH₂COOH
Deebii fi ibsa ilaalaa

Deebii: D CH₃CH₂COOH

Maaliif

Propanoic acid is a three-carbon carboxylic acid with the molecular formula CH––CH––COOH.

Gaaffii 3

Fats and oils can be classified as___________.

  1. A.carbohydrates
  2. B.acids
  3. C.esters
  4. D.alcohols
Deebii fi ibsa ilaalaa

Deebii: C esters

Maaliif

Fats and oils are triglycerides, which are esters formed from glycerol (a triol) and three fatty acid molecules.

Gaaffii 4

What does it mean by Δ\DeltaH = negative for a given process?

  1. A.The process is endothermic
  2. B.The process is exothermic
  3. C.The process is adiabatic
  4. D.The process is equithermic
Deebii fi ibsa ilaalaa

Deebii: B The process is exothermic

Maaliif

A negative change in enthalpy (Δ\DeltaH < 0) indicates that heat is released to the surroundings, which is the definition of an exothermic process.

Gaaffii 5

The oxidation state of chlorine in HClO₄ is:

  1. A.+1
  2. B.+3
  3. C.+5
  4. D.+7
Deebii fi ibsa ilaalaa

Deebii: D +7

Maaliif

In HClO₄, hydrogen has an oxidation state of +1 and oxygen is -2. Setting the sum equal to zero: (+1) + Cl + 4(-2) = 0, which gives Cl = +7.

Gaaffii 6

Which substance is used to lower the melting point of aluminum oxide ore in the electrolytic extraction of aluminum?

  1. A.Cryolite
  2. B.Bauxite
  3. C.Hematite
  4. D.Magnetite
Deebii fi ibsa ilaalaa

Deebii: A Cryolite

Maaliif

Cryolite (Na₃AlF₆) is added to alumina (Al₂O₃) to lower its melting point from about 2050°C to around 950°C, making the electrolytic extraction of aluminum energy-efficient.

Qormaata guutuu PDF dhaan buufadhaa

Gaaffilee 77 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 77 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)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 2011 A.L.I ti?

Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Keemistirii barattoonni bara 2011 A.L.I (2019) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 77 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 2011 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.

SeeniHerrega kee bani