Question
Naphthalene balls, commonly used as a pest repellent,
are derived from which source?Solution
Naphthalene balls are made from coal tar and are used as insecticides and pest repellents, especially against moths and cockroaches. The chemical formula of naphthalene is C₁₀H₈.
More Chemistry GS Questions
Find the wrong number in the given number series.
7, 38, 63, 116, 171, 242
147 490 707 831 895 922 930
...13 74 355 1416 4245
126, 295, 520, 807, 1170, 1611
Find the wrong number in the given number series.
21, 31, 11, 41, 1, 6160, 63, 71, 86, 125, 145
Find the wrong number in the given number series.
25, 38, 53, 74, 97, 126
125, 142, 199, 320, 489, 778
- Find the wrong number in the given number series.
2, 6, 14, 30, 62, 126 Find the wrong number in the given number series.
134, 163, 194, 231, 274, 315
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