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Chemistry

Chemistry
DDT and BHC may act as

Carcinogens
Asthematic agents
Allergens
None of these

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Chemistry
The ore of Aluminium is

Hematite
Bauxite
Chalco pyrites
Fluorspar

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Chemistry
The 'solid waste' is also known as

Scrubber
Toxic waste
Sedge
Sludge

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Chemistry
London smog is found in

Winter during day time
Summer during day time
Summer during morning time
Winter during morning time

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Chemistry
The green colour seen in firework displays is due to the chloride salt of :

Calcium
Barium
Strontium
Sodium

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Chemistry
The filter over which sewage is sprinkled is called as

Contact bed
Percolating filter
Intermittent sand filter
Trickling filter

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MORE MCQ ON Chemistry

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