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Chemistry

Chemistry
The acid rain destroys vegetations because it contains

Sulphuric acid
Carbon monoxide
Ozone
Nitric acid

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Chemistry
Wax used for making candle is chemically a mixture of

Aromatic hydrocarbons
Cyclic hydrocarbons
Aliphatic hydrocarbons
Aliphatic and aromatic hydrocarbons

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Chemistry
If a buffer solution is diluted its pH

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

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Chemistry
Vinegar is ________ .

Glacial acetic acid
Diluted acetic acid
Glacial formic acid
Diluted formic acid

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Chemistry
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

p-electrons in Ne(Z = 10)
d-electrons in Fe(Z = 26)
s-electrons in Mg(Z = 12)
p-electrons in CI(Z = 17)

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Chemistry
Formation of ozone hole is maximum over

Antarctica
Africa
Europe
India

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