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Chemistry

Chemistry
The strongest acid of the following is

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

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Chemistry
Which one is the lightest element in the periodic table

Carbon
Hydrogen
Helium
Oxygen

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Chemistry
The major use of sulphur is in the manufacture of

SO2
H2S
Fungicide
H2SO4

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Chemistry
The number of waves in n x 10th Bohr's orbit are

n2
n
n3
n-2

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Chemistry
Iron rusts quickly in

Sea water
Distilled water
River water
Rain water

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Chemistry
Which one of the following statements is not correct? Vulcanisation of rubber makes it

Strong and hard
Soft and flexible
Chemical resistant
Withstand higher temperatures

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