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Chemistry

Chemistry
A pungent smell often present near the urinals is due to

Chlorine
Urea
Ammonia
Sulphur-di- oxide

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Chemistry
The most volatile of the given liquids is

Liquid
Liquid He
Liquid NH3
Ether

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Chemistry
Which one of the following organic compounds has fruity smell?

Aldehyde
Ester
Ether
Alcohol

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Chemistry
Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium

B, D and E
A and C
A, B, C, D and E
A, C and E

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Chemistry
The most important ore of lead is

Pyrolusite
Galena
Siderite
Magnetite

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Chemistry
In a period from Li to F, ionisation potential

Remains same
Increases
Decreases
Cannot be predicted

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