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Chemistry

Chemistry
Which of the following fibres catches fire least ?

Terricot
Cotton
Nylon
Rayon

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

Isoprene
Neoprene
Vinyl Chloride
Acetylene

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Chemistry
Which one of the following elements is used in the manufacture of safety matches?

Graphite
Sodium
Silicon
Phosphorus

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.5 mole
0.25 mole
0.2 mole
0.4 mole

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Aquatic macrophytes
Auatic fungi
Evapotranspiration
Effluents

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Chemistry
Which one of the following is a greenhouse gas ?

Nitrogen
Sulphur dioxide
Carbon dioxide
Helium

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MORE MCQ ON Chemistry

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