Maths Group11
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The main purposes of this channel are to:
1. 📝 Provide various Mathematics questions and exercises.
2. 📚 Share and publish different educational books.
3. 📖 Provide useful short notes and study materials.

For more, contact us through: @Fikiru_Asnake
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ለ2018 ዓ.ም የ12ኛ ክፍል የመልቀቂያ ፈተና የኦንላይን ልምምድ ያድርጉ!

የትምህርት ምዘናና ፈተናዎች አገልግሎት የ2018 ትምህርት ዘመን 12ኛ ክፍል ሀገር አቀፍ መልቀቂያ ተፈታኞች ፈተና የሚለማመዱበት አድራሻ ይፋ አድርጓል።

ተፈታኞች በተደለደሉበት ክልል ወይም ከተማ አስተዳደር ትይዩ ያለውን ሊንክ በመጠቀም፣ User Name በሚለው ላይ የፈተና አዳራሽ መግቢያ ካርድ ላይ ያለውን አድሚሽን ቁጥር በማስገባት እና Password በሚለው ላይ 1234 በማስገባት በዴስክቶፕ ኮምፒውተር፣ በላፕቶፕ፣ በታብሌት፣ በስልክ እና በመሰል የኤልክትሮኒክስ መሳሪያዎች ማንኛውንም አይነት የኢንተርኔት አማራጭ በመጠቀም ከነገ ግንቦት 07/2018 ዓ.ም ጠዋት 3፡00 ሰዓት ጀምሮ እስከፈተናው ድረስ መለማመመድ እንደሚችሉ ተገልጿል።

Practice Video: https://youtu.be/6e7AgEGBIjU
❤3
What mass of aluminum is deposited electrolytically in 30 minutes by a current of 40A ?
Anonymous Quiz
23%
0.672
43%
6. 71
19%
16. 12
15%
0.061
❤2
Which one process is manufacturing of ammonia?
Anonymous Quiz
8%
Ostwald
8%
Contact
75%
Haber
9%
All
❤3
Rate of reaction depends on:
Anonymous Quiz
7%
Concentration
4%
Temperature
3%
Nature of reactant
85%
All
The hydrogenation of oil at high pressure in presence of nickel catalyst produce___.
Anonymous Quiz
18%
Carboxylic acid
56%
Fats
18%
Aldehyde
8%
Alcohol
Which of the following is peroxide?
Anonymous Quiz
16%
ZnO
12%
FeO
19%
K2O
53%
CaO2
A chemical reaction that releases heat energy to the surrounding is known as ______.
Anonymous Quiz
86%
exothermic reaction
10%
endothermic reaction
3%
decomposition reaction
1%
combination reaction
A type of reaction in which two compounds react together to form two or more products by exchanging reactants ions is known as ___.
Anonymous Quiz
5%
decomposition reaction
16%
combination reaction
9%
single displacement reaction
70%
double displacement reaction
The measured amount of product obtained in any chemical reaction is known as _____.
Anonymous Quiz
43%
stoichiometry
13%
limiting reactant
8%
excess reactant
36%
actual yield
A 2kg object undergoes an acceleration given by(3i-4j)m/s^2. What is the magnitude of the resultant force?
Anonymous Quiz
10%
A. 20
72%
B. 10
14%
C. 35
4%
D. 15
❤3🔥3
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@maths_group11
🙏4❤2
Given data 3, 16, 4, 8, 9, 2, 1, 6, 11, 13, 5, 7 then what is the range of the given data?
Anonymous Quiz
12%
12
75%
15
9%
8
4%
10
❤3
What is the total surface area of the sphere with radius 3cm?
Anonymous Quiz
56%
36πcm²
27%
9πcm²
14%
12πcm²
3%
42πcm²
👍6
The molecule of which pigment js located at the reaction center of photosynthesis?
Anonymous Quiz
65%
A. Chlorophyll a
14%
B. Chlorophyll b
10%
C. Carotenoid
10%
D. Accessory pigments
❤3
Where does the light dependent reaction of photosynthesis occur in the chloroplast?
Anonymous Quiz
67%
A. In the thylakoid membrane
11%
B. In the fluid of the stroma
16%
C. In all parts of the chloroplast
6%
D. In the stomatal opening
❤3
16. Which microorganism is usually used for leavening bread making in biotechnology?
Anonymous Quiz
63%
A. Saccharomyces cerevisiae.
17%
B. Lactobacillus plantarum.
11%
C. Leuconostoc mesenteroides.
9%
D. Streptococcus thermophilus.