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Column Matching
Match the physical quantities given in column I with their dimensional formulas given in column II. Q stands for the dimension of electric charge.

	Column I		Column II
(a)	Electric potential	(p)	M^-1 L^-3 T² Q²
(b)	Electric field	(q)	ML³ T^-2 Q^-1
(c)	Electric flux	(r)	MLT^-2 Q^-1
(d)	Electric permittivity	(s)	ML²T^-2 Q^-1

Chemistry

Multiple Choice Question
Which of the following statements regarding sulphuric acid is not correct ?
(a) The absorption of SO₂ in sulphuric acid produces oleum
(b) Sulphuric acid with water forms an azetropic mixture
(c) Concentrated sulphuric acid is a weak oxidizing agent
(d) Lesser electropositive elements reduce sulphuric acid to sulphur dioxide

Mathematics

Multiple Choice Question
A library has n different books and has p copies of each of the book. The number of ways of selecting one or more books from the library is