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Chemistry

Chemistry
How many neutrons are there in 92U238 atom ?

238
92
330
146

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Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

molarity
molality
normality
formality

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Chemistry
The percentage of Nitrogen in Air is

85.02
78.03
0.94
0.03

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Chemistry
Total number of elements in the Periodic table

118
127
115
112

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Chemistry
Thermal electricity is generated by using which of these ?

Coal only
Coal and Natural Gas only
None of these
Coal, Natural Gas and Petroleum

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Chemistry
Saline soil contains

Hard rocks
Lot of moisture
High concentration of salt
None of these

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MORE MCQ ON Chemistry

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