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Chemistry

Chemistry
DDT and BHC may act as

Carcinogens
None of these
Allergens
Asthematic agents

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Chemistry
In a Carbonyl group a carbon atom makes double bond with

Hydrogen
None of these
Oxygen
Carbon

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Chemistry
Cinnabar is an ore/mineral of

Molybdenum
Mercury
Manganese
Lead

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Chemistry
The quality of petrol is expressed in terms of

Added unlead compounds
Octane number
Cetane number
Gold number

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Chemistry
Which of the following is used to make light weight, but strong plastic ?

Methyl Methacrylate
Polythene
Polyvinyl Chloride
Nylon

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Chemistry
The basic chemical building block of natural rubber obtained from trees is

Neoprene
Acetylene
Vinyl Chloride
Isoprene

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