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Chemistry

Chemistry
Which one is the most reactive gaseous element

Flourine
Bromine
Chlorine
Iodine

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Chemistry
The chemical used in embalming biological materials is

Formaldehyde in water
Ethylene glycol
Formaldehyde in methanol
Gaseous formaldehyde

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Chemistry
Atomic number is the number equal to

Electrons
Protons
None of these
Neutrons

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Chemistry
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

4
2
5
zero

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Chemistry
It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of

CO
Unburnt petrol
SO2
CO2

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Chemistry
Sea weeds are important source of

Iron
Iodine
Bromine
Chlorine

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MORE MCQ ON Chemistry

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