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Multiple Choice Question with Two or More Choices Correct
Choose the wrong statements from the following. A bimetallic strip consists of brass and iron. When it is heated it bends into an arc with brass on the convex and iron on the concave side of the arc. This happens because
(a) brass has a higher specific heat capacity than iron
(b) density of brass is more than that of iron
(c) it is easier to bend an iron strip than a brass strip of the same size
(d) brass has a higher coefficient of linear expansion than iron

Chemistry

Multiple Choice Question
Which of the following facts regarding the movements of anions in the solution is correct?
(a) Towards cathode in an electrolytic cell and towards anode in a galvanic cell
(b) Towards anode in an electrolytic cell and towards cathode in a galvanic cell
(c) Towards cathode in both types of cells
(d) Towards anode in both types of cells

Mathematics

Ten different letters of an alphabet are given. Words with five letters are formed from these given letters.Then the number of words which have at least one letter repeated is

(a)	69760	(b)	30240
(c)	99748	(d)	none of these

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