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Chemistry

Chemistry
Which one element has the lowest electronegativity value

Fluorine
Chlorine
Francium
Radium

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Chemistry
The heat required to raise the temperature of body by 1 K is called

thermal capacity
None of these
specific heat
water equivalent

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Chemistry
Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called

Aerosols
Fumes
Smoke
Mists

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Chemistry
Which of the following has the highest lattice energy

CsF
KF
RbF
NaF

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Chemistry
Which of the following fuels causes minimum environmental pollution?

Kerosene
Diesel
Hydrogen
Coal

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Chemistry
Saline soil contains

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

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