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Chemistry

Chemistry
Lead pencil contains

Lead
Graphite
Lead sulphide
Ferrous sulphide

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Chemistry
Who modified Bohr's theory by introducing elliptical orbits for electron path

Hund
Sommerfeld
Thomson
Rutherford

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Chemistry
Domestic cooking gas consists mostly of

Methane and ethane
Liquified butane and isobutane
Hydrogen and acetylene
Ethylene and carbon monoxide

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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
Which of the following fuels causes minimum environmental pollution?

Diesel
Coal
Hydrogen
Kerosene

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Chemistry
Which one of the following is used as a sowing agent in the preparation of soft drinks?

Boric acid
Salicylic acid
Phosphoric acid
Phosphorus acid

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MORE MCQ ON Chemistry

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