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Chemistry

Chemistry
Which of the following alkali metals has highest specific heat?

Caesium
Lithium
Potassium
Rubidium

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Chemistry
PVC is obtained by the polymerisation of

Acetylene
Vinyl chloride
Styrene
Propane

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Chemistry
Which one is not a primary greenhouse gases in the Earth's atmosphere

Carbon dioxide
Nitrogen
Ozone
Methane

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Chemistry
The nucleus of an atom consists of

electrons and neutrons
electrons and protons
protons and neutrons
All of these

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Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

Haemetite
Magnetite
Limnonite
None of these

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Chemistry
The aprotic solvent is

HF
NH3
C6H6
H2O

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