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.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
In the following question, select the odd word from the given alternatives.
Select the option in which the numbers are related in the same way as are the numbers in the given set.
(18, 180, 12)
In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) w...
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
In the following question, select the odd pair of numbers from the given alternatives.
Find the odd one that does not belong to that group.
In the word ‘FRUSTRATED’, first all the letters are written in an alphabetical order form, then remove all the vowels from the arrangement then ho...
Select the set in which the numbers are related in the same way as are the numbers of the given set.
14, 196, 2744
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