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Question 9Naphthalene balls are obtained from coal tar and are used as(a) mosquito repellant(b) honeybee repellant(c) moth repellant(d) snake repellant |
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Answer» Question 9 Naphthalene balls are obtained from coal tar and are used as (a) mosquito repellant (b) honeybee repellant (c) moth repellant (d) snake repellant |
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