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Chemistry

Chemistry
Which one of the following is most electronegative

Tin
Lead
Silicon
Carbon

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Chemistry
If a buffer solution is diluted its pH

Remains same
Is decreased
Will slowly increase and then it will decrease
Is increased

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Chemistry
Sea weeds are important source of

Iron
Bromine
Iodine
Chlorine

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Chemistry
The next higher homologue of C6H14 is

C6H12
C7H14
C7H12
C7H16

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Chemistry
Ultraviolet radiation striking the earth is due to the depletion of

Oxygen
Carbon dioxide
Carbon monoxide
Ozone

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Benzoic acid
Cinnamic acid
Phthalic acid
Oxalic acid

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