Gaaffii 1
Fats and oils are:
- A.Acids
- B.Alcohols
- C.Alkenes
- D.Esters
Deebii fi ibsa ilaalaa
Deebii: D Esters
Maaliif
Fats and oils are triglycerides, which are triesters formed from glycerol and three fatty acid molecules.
Waraqaalee qormaataa
Qormaata galuumsa kutaa 12ffaa Keemistirii, bara 2010 A.L.I (2018)
Gaaffilee dhugaa qormaata galuumsa yunivarsiitii kutaa 12 kan Keemistirii, akkuma barattoonni bara 2010 A.L.I itti fudhatanitti. Tokkoon tokkoon gaaffii deebii sirrii fi ibsa qaba.
Damee saayinsii uumamaa
Eenyutu fudhata
2010 A.L.I (2018)
Bara qormaataa
Gaaffilee 71 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 2
The reaction between alcohols and acyl chlorides produces
- A.Ethers
- B.Esters
- C.Carboxylic acids
- D.Aromatic salts
Deebii fi ibsa ilaalaa
Deebii: B Esters
Maaliif
The reaction of an alcohol with an acyl chloride (acid chloride) undergoes nucleophilic acyl substitution to produce an ester and hydrogen chloride.
Gaaffii 4
When a student draws a plausible Lewis structure for hydrazine molecule (), how many lone pair of electrons are available?
- A.1
- B.4
- C.3
- D.2
Deebii fi ibsa ilaalaa
Deebii: D 2
Maaliif
In hydrazine (H2N-NH2), each nitrogen atom forms three single covalent bonds (two with hydrogen atoms and one with the other nitrogen) and retains one lone pair, giving a total of 2 lone pairs in the molecule.
Gaaffii 5
Who used the cathode Ray tube to discover the electron and determine its charge to mass ratio?
- A.Robert A. Millikan
- B.James Chadwick
- C.J.J Thomson
- D.Ernest Rutherford
Deebii fi ibsa ilaalaa
Deebii: C J.J Thomson
Maaliif
J.J. Thomson discovered the electron in 1897 using cathode ray tubes and successfully measured its charge-to-mass ratio (e/m).
Gaaffii 6
Compounds that contain the carboxyl (carbonyl and hydroxyl) group are said to be:
- A.Organic acids
- B.Ketones
- C.Aldehydes
- D.Esters
Deebii fi ibsa ilaalaa
Deebii: A Organic acids
Maaliif
The carboxyl functional group (-COOH) consists of a carbonyl group bonded to a hydroxyl group, which characterizes carboxylic acids (organic acids).
Gaaffii 7
The main ore of lead is called:
- A.Zinc blend
- B.Galena
- C.Cinnabar
- D.Chromite
Deebii fi ibsa ilaalaa
Deebii: B Galena
Maaliif
Galena, which is lead(II) sulfide (PbS), is the primary and most important mineral ore of lead.
Qormaata guutuu PDF dhaan buufadhaa
Gaaffilee 71 kuusaa kana keessa jiran hunda akka waraqaa qormaataa maxxanfameetti, furtuu deebii ibsa 69 waliin immoo akka faayilii lammaffaatti. Maxxansaa yookiin daataa malee dubbisaa.
Bilisa; herregas hin gaafatu.
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.
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.
Kunneen gaaffilee dhugaa qormaata galuumsa Keemistirii bara 2010 A.L.I ti?
Eeyyee. Qormaata galuumsa yunivarsiitii biyyaalessaa kan Keemistirii barattoonni bara 2010 A.L.I (2018) fudhatan irraa fudhataman. Kuusaan keenya gaaffilee isaa 71 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 2010 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.