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Chemistry

Chemistry
Which one is the simplest form of alkane

Propane
Methane
Butane
Decane

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Chemistry
The pair of compounds used as anaesthetic in medicines :

Ether, Ammonia
Nitrogen dioxide, ether
Nitrous oxide, Chloroform
Chloroform, Nitrogen dioxide

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Chemistry
Silver gets corroded due to ________ in air.

Carbon dioxide
Nitrogen
Oxygen
Hydrogen Sulphide

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Chemistry
Alum stops bleeding in minor cuts because of

Solvation
Dialysis
Emulsion
Coagulation

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Chemistry
The main buffer system of the human blood is

H2CO3 - HCO3
CH3COOH - CH3COO-
H2CO3 - CO32-
NH2CONH2 - NH2CONH+

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Chemistry
The items amenable to detection by soft x-rays are

genuine coins from counterfeit coins
narcotics
contrabands
lead in bullets

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