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Chemistry

Chemistry
Natural rubber is a polymer of

Propene
Vinyl acetate
Styrene
Isoprene

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Chemistry
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Helium
Methane
Hydrogen
Nitrogen

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Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Methane
Carbon di-oxide
Ethane
Carbon monoxide

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Chemistry
The minimum energy required for an effective collision is

Threshold energy
Free energy
Internal energy
Activation energy

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Chemistry
Soldering of two metals is possible because of the property of :

Osmosis
Cohesion
Viscosity
Surface tension

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Chemistry
DDT and BHC may act as

Allergens
Carcinogens
Asthematic agents
None of these

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MORE MCQ ON Chemistry

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