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Chemistry

Chemistry
Brass is a solution of molten copper in

Molten tin
Gaseous zinc
Solid zinc
Molten zinc

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Chemistry
Which of the following is biodegradable ?

Aluminium
D.T.
Paper
Plastic

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Chemistry
The element which is used for vulcanizing rubber

Silicon
Bromine
Phosphorus
Sulphur

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

2.05 gram
3.05 gram
4.05 gram
5.05 gram

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Chemistry
Terylene is a condensation polymer of ethylene glycol and which acid?

Phthalic acid
Benzoic Acid
Salicylic acid
Terephthalic acid

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Chemistry
Browning of paper in old books is caused by

Oxidation of cellulose
Frequent use
Collection of dust
Lack of aeration

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MORE MCQ ON Chemistry

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