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Chemistry

Chemistry
The metal that is used as a catalyst in the hydrogenation of oils is

Pt
Ni
Cu
Pb

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Chemistry
Main source of lead pollution is from

Tobacco
Sewage
Insecticides
Leaded gasoline

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Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Methane
Propane
Ethane
Butane

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Chemistry
The addition of gypsum to portland cement helps in :

Increasing the strength of cement
Preventing rapid setting of cement
Rapid setting of cement
Reduction in the cost of cement

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Chemistry
Chloroform can be used as

Antibiotic
Antimalarial
Analgesic
Anaesthetic

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Chemistry
The material used in solar cells contains

Caesium
Tin
Silicon
Thallium

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MORE MCQ ON Chemistry

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