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Online Tests
Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
Which of the following elemens is presnet in 1st period.
Choose an answer
Hydrogen
Helium
Both a and b
None of these
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Question # 2
Which is the softtest metal.
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Zn
Ca
Na
Al
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Question # 3
How many electrons can be accommodated at the most in the third shell of the elements.
Choose an answer
8
10
18
32
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Question # 4
Why the gas starts coming out when you open a can of fizzy drink.
Choose an answer
Because gteh solubiliyt of the gas increases
Because the gas is dissolved under pressure hence it comes out when pressur eis decreased
Becaue the gas is insoluble in water
Because the solubility of hte gas decreases at high pressure.
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Question # 5
Which one of the following halongesn has lowest electronetivity
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Iodine
Chlorine
Fluorine
Bromine
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Question # 6
The branch of chemistry that helps to treat dseases and synthesize new medicines.
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Physical Chemistry
Environmental Chemistry
Organic chemistry
Inorganic chemistry
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Question # 7
To Identify the concentration of a particular solution through titration is and application of.
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astrochemistry
analytical chemistry
geochemistry
Organic chemistry
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Question # 8
In which isotope of oxygen there are the equal numbr of protons electons and neutorns.
Choose an answer
O
16
17
O
18
O
None of these
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Question # 9
The branch of chemistry that is concerned with the large scale production of chemical substances is.
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Environemantal chemistry
Inorganic chemistry
Physical Chemistry
Industrial chemistry
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Question # 10
Quantum means.
Choose an answer
Virable energy
Fixed energy
High energy
Minimum energy
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Question # 11
Which molecule contains a single vovalent bond.
Choose an answer
CH4
C2H4
C2H2
O2
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Question # 12
According to Arrhenius concept base is a substance which dissociates in aqueios solution to give
Choose an answer
Hydroxide ions
Hydrogen ions
Pair of Electrons
Proton
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Question # 13
No reaction occurs if the energy of reacting particles.......activation energy.
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Lower than
Greather than
Nearest to
Equal to
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