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Chemistry

Chemistry
Who developed the model of atomic structure ?

Alfred Nobel
Volta
Bohr and Rutherford
Faraday

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Chemistry
The main active constituent of tea and coffee is

chlorophyll
nicotine
caffeine
aspirin

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Chemistry
Which of the following processes is used for the production of Biodiesel ?

Transesterification
Transcription
Translation
Transamination

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Chemistry
Bleaching powder is prepared by passing :

Chlorine over slaked lime
Oxygen over slaked lime
Carbon dioxide over slaked lime
Chlorine over quick lirne

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Chemistry
The oxidation number of nickel in K4[Ni(CN)4] is

8
4
–4
Zero

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Chemistry
Which one of the following species has the highest bond order, shortest bond length and maximum bond strength

O-22
O-2
O2
O+2

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