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Chemistry

Chemistry
The anode of a dry cell is made up of

Lead
Iron
Zinc
Cadmium

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Chemistry
The element with highest first ionisation energy is

Hydrogen
Helium
Sodium
Lithium

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Chemistry
Hard water and soft water can be distinguished by using

Liquid soap
Ordinary soap
Dilute acid
Detergent

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Evapotranspiration
Auatic fungi
Effluents
Aquatic macrophytes

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Chemistry
Major portion of the earth’s crust is mainly constituted by

Silicon and Aluminium
Oxygen and Iron
Silicon and Iron
Oxygen and Silicon

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Chemistry
The most abundant constituent of atmospheric air is :

Hydrogen
Carbon
Oxygen
Nitrogen

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MORE MCQ ON Chemistry

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