Which gas does NOT decolourize bromine water?

Kingsley Thompson August 10, 2025

 Which gas does NOT decolourize bromine water?

A. C2H2,

B. C2H4,

C. C2H6,

D. C3H4,

E. C3H6,

The correct answer is C.

Explanation: Alkanes are saturated hydrocarbons with the general molecular formula CnH2n+2, each members can be derived from the formula by substituting with numbers from one upward. and all members of alkane family examples methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), pentane (C5H12), hexane (C6H14), heptane(C7H16), octane (C8H18), nonane(C9H20), decane (C10H22), undecane (C11H24), dodocane (C12H26), etc, do not decolourize bromine water.

SOURCE: NECO CHEMISTRY 2001 QUESTION 5

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Kingsley Thompson

Posted by: Kingsley Thompson

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