ለ ተማሪዎች መልካም ዜና
ጥያቄዎችን የምታገኙበትን ምርጥ ቻናሎች ልጋብዛቹ ትወዳላቹ
ጥያቄዎችን የምታገኙበትን ምርጥ ቻናሎች ልጋብዛቹ ትወዳላቹ
Forwarded from BEST STUDY
Elements in the same group of the periodic table have the same
Anonymous Quiz
76%
Valence electrons
7%
Nuclear charge
10%
Number of shell
7%
Atomic number
Forwarded from BEST STUDY
Which property generally increases when one descends down a group of the periodic table?
Anonymous Quiz
7%
Electronegativity
9%
Electron affinity
79%
Metallic property
5%
First ionization energy
Forwarded from BEST STUDY
The typical reaction of benzene with most reagents is
Anonymous Quiz
46%
Substitution
18%
Elimination
18%
Addition
18%
Combustion
Forwarded from BEST STUDY
A Petroleum product commonly used for jet engines &tractors,heating &lighting purpose is
Anonymous Quiz
24%
Diesel fuel
33%
Kerosene
29%
Petroleum ether
14%
Petrol
Forwarded from BEST STUDY
The cpd carbon tetrachloride &tetra chloro ethylene are
Anonymous Quiz
26%
Food preserving
18%
Tanning
50%
Dry cleaning
6%
Sugar production
Forwarded from BEST STUDY
The first atomic theory was proposed by
Anonymous Quiz
4%
Thomson
16%
Aristotle
30%
Dalton
50%
Democritus
Forwarded from BEST STUDY
Ionic cpds are generally
Anonymous Quiz
42%
Volatile molecular
32%
Clasery packed dense solids
9%
Soft molecular solids
18%
Rigid molecular soli
Forwarded from BEST STUDY
Which one of the following changes is an example of a chemical change?
Anonymous Quiz
18%
Melting of fat
63%
Decomposing of copper carbonate
11%
Evaporation of water
9%
Dissolving of salt in water
Forwarded from BEST STUDY
The acid that is responsible for the painful feeling from the "sting of ants 🐜 "is
Anonymous Quiz
10%
Propanoic acid
12%
Butanoic acid
67%
Formic acid
12%
Acetic acid
Forwarded from BEST STUDY
Aromatic hydrocarbons mainly react by
Anonymous Quiz
7%
Elimination
40%
Hydrogenation
18%
Addition
35%
Substitution
Forwarded from BEST STUDY
The most important industrial application of alkanes is
Anonymous Quiz
21%
I polymers production
61%
As fuel
7%
In insecticide
11%
As a solvent
Forwarded from Quiz channel
WC-Commonly-Confused-Words.pdf
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