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Chemistry

Chemistry
The chief constituent of vinegar is

Oxalic acid
Acetic acid
Salycylic acid
Formic acid

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

SO2
NO2
SO3
N2O

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Chemistry
Which of the following is not present in RNA

Ribose
Uracil
Phosphate
Thymine

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Evapotranspiration
Aquatic macrophytes
Auatic fungi
Effluents

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Chemistry
Ethanol containing 5% water is known as

Power alcohol
Methylated alcohol
Rectified spirit
Denatured spirit

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Chemistry
The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is

Carbene
Free radical
Carbanion
Carbocation

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