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.
What is the position of C with respect to E?
Which of the following is true?
Who among the following person is sitting opposite to the one who is sitting immediate left of O?
Which of the following statement(s) is/are true?
Who sits diagonally opposite to G?
- Six persons T, U, V, W, X and Y sit in a linear row facing north. X is second to the left of T. Two persons sits to the right of Y. W sits immediate left o...
Seven friends A, B, C, D, E, F and G are sitting around a circular table facing towards the centre(not necessarily in the same order). A is third to the...
Six persons F, G, H, I, J and K sit in a linear row and face in the north direction. I sits at an extreme end of the row. Only two persons sit between I...
Who is paternal grandfather of M?
Who sits second to the right of W?
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