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Chemistry

Chemistry
The strongest acid of the following is

P-chlorophenol
M-nitrophenol
O-nitrophenol
P-nitrophenol

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Chemistry
Total number of halogen elements found in the periodic table is

5
13
8
3

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Chemistry
Which among the following metals provides amphoteric oxide ?

Silver
Calcium
Sodium
Aluminium

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Chemistry
Which of the following gases is most toxic ?

Carbon dioxide
Chlorine
Carbon monoxide
Sulphur dioxide

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Chemistry
German silver used for making utensils is an alloy of

Copper, zinc, nickel
Copper, silver, nickel
Copper, nickel, aluminium
Copper, zinc, aluminium

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Chemistry
Ethanol containing 5% water is known as

Rectified spirit
Denatured spirit
Methylated alcohol
Power alcohol

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