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Chemistry

Chemistry
The oil used in the froth floatation process is

coconut oil
pine oil
olive oil
kerosene oil

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Chemistry
The buffer action of blood is due to the presence of

CI– and [HCO3]–
CI– and [CO3]2–
[HCO3]– and H2CO3
HCI and NaCI

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Chemistry
The inexpensive and commonly used variety of glass is called soda glass.

is made using soda(sodium carbonate)
is made using soda lime
was initially used for storing sodium carbonate
was used initially for making bottles of soda(carbonated drink)

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Chemistry
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

4
2
5
zero

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Chemistry
High concentration hydrocarbon pollutants in atmospheric air causes

Reduced crop yield
Respiratory diseases (e.g.asthma)
Silicosis
Cancer

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Chemistry
Iron is prevented from rusting by coating with zinc. This process is called as

Sublimation
Reduction
Corrosion
Galvanisation

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