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Chemistry

Chemistry
The number of hydrogen bonds between guanine and cytosine in DNA is

4
3
2
1

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Chemistry
'Atomic theory' of matter was given by

Newton
Avogadro
Pascal
Dalton

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Chemistry
Iron filings can be separated from a heterogenous mixture using the technique of :

Sublimation
Magnetization
Evaporation
Sedimentation

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Chemistry
Which of the following acids serves as an electrolyte in a lead storage battery?

Nitric acid
Sulphuric acid
Hydrochloric acid
Lactic acid

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Chemistry
The elements in the modern Periodic table are arranged according to their

Atomic Weight
Mass number
Atomic number
Neutron number

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Chemistry
The deterioration of a metal by an electrochemical process is commonly termed as

Erosion
Corrosion
Abrasion
Passivation

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