UGC NET Paper 1 — Chemistry
14 questions across 6 years
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5 questions shown in Pollution.
Which of the following are true about the hard water? A. Hardness in water can occur in both surface and underground waters. B. Hardness increases the cleaning efficiency of water....
Hardness of water is caused by the presence of
Which of the following are characteristics/properties of permanent hardness in water? A. Presence of bicarbonates of calcium and magnesium B. Presence of sulphates of calcium and m...
Given below are two statements Statement I: Methanol (CH3OH) also known as wood alcohol and has a much higher octane rating than gasoline. Statement II: Methanol burns with higher...
Given below are two Statements, one is labelled as Assertion A and other is labelled as Reason R. Assertion A: Carbon monoxide (CO) is a serious asphyxiate; even a short exposure m...