A. {0} B. {2} C. {0,2} D. (0,2) E. {(0,2)} The solution set of the equation 9x2+1=0 is A. {1/3} B. {-1/3} C. {1/3, -1/3} D.∅ E. None of them The solution set of x2-6x+5=4 is A. {(1,5)} B. {2√3+3} C. {3±2√3}

) The total momentum of an …….. system is constant. (25) The product of mass to velocity is ……… . (26) The acceleration due to the gravitational force is called acceleration due to ……… . (27) For free-fall

If 2x2 -5xy + 3y2=0, then x:y=………. A. 2:5 B. 5:3 C. 1:1 D. 1:1 (or) 2:3 E. 3:2 (or) 1:1 If xy = x + y, where x and y are real numbers, then y cannot be A.0 B.1 C. -1 D.2 E. -2 If 3a = 4b = 5c, then 1/a:1/b:1/c

g) The IUPAC name of di-methyl methylene is ………. . Select the correct word(s) given in the bracket. (7 marks) (a) Proteins is ( polymer, copolymer, monomer). (b) The molecule of (NH3, ClF3, BCl3) does

) If we convert 135° to radian measure, we get A.3π/4 B.3π/2 C.π/4 D.π/2 E.(3+π)/2 (5) A sector of a circle has arc length of 8 cm and the area of 16 cm2,then the radius of the circle in cm , is A. 2 B.

. Only vector quantities of ………. kind may be added. If D ⃗ =-4C ⃗, the magnitude of D ⃗ is ………. than that of C ⃗. If A ⃗, B ⃗ and C ⃗ satisfy the equation A ⃗+B ⃗-C ⃗=0, then C ⃗ is ……… vector of A ⃗and

Make tables for the functions. (a) x⟼ x, (b) x ⟼ x, (c) x ⟼ x + 2, (d) x ⟼ -x+2 (e) x ⟼ 2x-1 from the set A = {-5,-4,-3,-2,-1,0,1,2,3,4,5} to the set Z. Draw a graphs. Draw the graph of the relation R

. Let A = {x/x is positive integer that is divisible by 2}. B = { x/x is a positive integer that is divisible by 3}. C = {x/x is appositive integer that is divisible by 5}. List the elements of the sets

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(32 marks) 8. Answer any FOUR questions. Explain the terms " a neutral aqueous solution" and "an amphiprotic molecule". (ii) Calculate the pH of a buffer solution containing 0.2 mol

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CHAPTER – 14 ORGANIC CHEMISTRYOrganic ChemistryOrganic chemistry is the chemistry of carbon compounds in which there is at least onecarbon to carbon bond( C - C) or carbon to hydrogen bond(C - H).* The

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