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Chemistry

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

Rutherford
Sommerfeld
Thomson
Hund

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

Pseudomonas putida
Bacillus subtilis
Saccharomyces cerevisiae
Escherichia coli

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Chemistry
Submarines move under water. They have engines that run on

Steam
Batteries
Diesel
Petrol and oxygen

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HI
HF
HCI
HBr

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Chemistry
Bee sting contains

A salt solution
An alkaline liquid
An acidic liquid
A corrosive liquid

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Chemistry
Sulphur dioxide level in the atmosphere can be reduced by using

Catalytic converters in industry
Static electricity to attract it in factory chimneys
Low - sulphur fuels
More efficient car engines

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MORE MCQ ON Chemistry

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