Element that have same number of neutrons are called__________?
isotone
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isotope
isobar
None of the above
Category: Chemistry
Calculate % of N in KNO3__________?
Calculate % of N in KNO3__________?
0.1386
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0.1486
0.1686
None of the above
The pH of milk is_______?
The pH of milk is_______?
6.5-7
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9
12
None of the above
The process in which solid changes directly into vapours without passing through liquid state?
The process in which solid changes directly into vapours without passing through liquid state?
Sublimation
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Decantation
Evaporation
None of the above
The Boiling Point of Ethyl Alcohol is_________?
The Boiling Point of Ethyl Alcohol is_________?
78°C
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58°C
55°C
None of the above
Why does Ethyl Alcohol show high boiling point then Acetone?
Why does Ethyl Alcohol show high boiling point then Acetone?
Due to Hydrogen bonding
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Due to high molecular weight
Due to its Acidic nature
None of the above
Why do we determined the boiling point of a liquid?
Why do we determined the boiling point of a liquid?
To check its Purity and nature
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To Check temperature
To check its Acidity and Basicity
None of the above
Which of the following can be separated by ” Sublimation Method”?
Which of the following can be separated by ” Sublimation Method”?
Sand and Naphthalene
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Sand and Iron Filing
Sand and Water
None of the above
The Chemical Formula of Sand is___________?
The Chemical Formula of Sand is___________?
SiO2
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Al2O3
Si2O3
None of the above
Benzene gives mainly_________?
Benzene gives mainly_________?
Substitution reactions
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Halogenation
Addition reaction
None of the above