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Chemistry

Chemistry
At room temperature, the metal that remains liquid is:

Mercury
Zinc
Platinum
Lead

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Chemistry
Ultra purification of a metal is done by :

Slugging
Zone melting
Leaching
Smelting

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Chemistry
The new strain of bacteria produced by biotechnology in alcohol industry is

Bacillus subtilis
Escherichia coli
Saccharomyces cerevisiae
Pseudomonas putida

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Chemistry
The percentage of carbon in cost iron is :

0.01 to 0.25
0.5 to 1.5
6 to 8
3 to 5

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Chemistry
The resources which can be used continuously, year-after -year are called

Abiotic
Non-renewable
Biotic
Renewable

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Chemistry
Nylon threads are made of

Polyamide polymer
Polyester polymer
Polysaccharide
Polyvinyl polymer

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MORE MCQ ON Chemistry

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