BlogHide Resteemsngelay38 (38)in kpf • 6 years agolpioFrom the following equation, identify oxidizing and reducing agents .Give reason for your answer. 2H2O + 2Br2 → O2 + 4HBr (f) Which elements (s) N or P or K is not…ngelay38 (38)in nef • 6 years agocet stu d8A. y^(1/2) B. y^(3/2) C.y^(5/4) D.y^(5/8) E.y^(7/8) x-2+y-2=…….. A.(x+y)-2 B. (xy)-2 C. (x2+y2)(xy)-2 D.x2+y2 E. (xy)(x+y)-2 20.If x4 =10, what is x6? A.10√10 B.100…ngelay38 (38)in kpf • 6 years agomoney makingThe vertices of a triangle ate the points A(-2,3), B( 5,-4) and C(1,8). Find the slope of each side and also the slope of median. The vertices of parallelogram are the points R(1,4), S(3,2)…ngelay38 (38)in koe • 6 years agosiim 87yThe unit of time in all system of measurement is the ………. . 13. kilogram The unit of mass in MKS system is ……… . 14.kilogram 15.The universe has the ………. size. 15.largest 16.The unit slug…ngelay38 (38)in sbs • 6 years agogood qA and B are two sets and numbers of elements ate as shown in the Venn diagram. Given that n(A) = n(B), calculate (a) x (b) n(A∪B) 2.A ,B and C are three sets and the number of elements are…ngelay38 (38)in sbs • 6 years agogea legyiFill in the blanks. (4-marks) (1)The largest unit of length is the _______. (2)The weight of 60 kg mass on the moon is _____ N. (3)If a ball is thrown upward with a velocity of 20 ms-1 ,it…ngelay38 (38)in intell • 6 years agosemmon lse……….. fundamental forces. (13) The gravitational force is a ……… range force . (14) Weight has both magnitude and ………. . (15) The SI unit of weight is ……… . (16) Mass is a scalar quantity and its…ngelay38 (38)in free • 6 years ago7yuh is. The magnitude of the resultant force of a 12 N pointing east and a force of 5 N pointing south is ……….. N. A vector of magnitude 100 units is inclined at angle 45° to the X-axis. The…ngelay38 (38)in linmo • 6 years agodmosinThe value of {[(2)^(-1) ]^(-1) }^(-1)is A.2 B.-2 C.-1/2 D.1/4 E.1/2 7.5^(3^2 )/(5^3 )^2 =……. A.1 B.0 C.25 D.125 E.625 8.(-1)^(-1) +(-1)^0 =………. A. 2 B.1 C.0 D.…ngelay38 (38)in sbs • 6 years agomocet essB.-6 C.9 D.12 E.15 log_35× log_2527=…………. A.3/2 B.2/3 C.5/27 D.3/25 E. 5×27 10.If x=log_ba,y=log_cb,z=log_ac, then xyz=………… A. 0 B. 1 C.-1 D. abc E.…ngelay38 (38)in anak • 6 years agominlso ml12.An arc BC subtends an angle of 144° at the centre O if a circle of radius 10 cm . Then the length of arc BC is A.25/2π B.25/2 π C.8/π D.π/8 E. 8π 13.If sin〖20°=x 〗then…ngelay38 (38)in myauk • 6 years agoyearly mthm (e) Sulphur (v) dissociation constant of the indicator (f) Bleaching powder (vi) K2SO4. Al2(SO4)3.24 H2O (g) Kin (vii) (NH4)2 SO4.FeSO4.6H2O…ngelay38 (38)in anauk • 6 years ago3g7 mathaiv) type of bond that is formed between A and B. (d) Write equations in words and symbols for the following reactions. (i) Dinitrogen oxide reacts with carbon. (ii) Concentrated nitric acid…ngelay38 (38)in intell • 6 years agoy6 myan) Is work a vector or scalar? Define “energy”. A wooden sphere of mass 0.15 kg is thrown with a velocity of 30 ms-1 .Find the kinetic energy of the sphere. (4-marks ) (b) Define “work” . Write…ngelay38 (38)in fec • 6 years agomin oin1.vector 2. force 3. zero 4.force 5. vector component 6.opposite 7.cector 8. scalar 9. same 10. opposite 11.…ngelay38 (38)in sto • 6 years agophychem sta body is moving with constant velocity , its acceleration is _____ . (10) _____ is the rate of change of velocity. (11) The velocity of a body is decreasing is has _____ acceleration. (12) The…ngelay38 (38)in koete • 6 years agojmoeoeAre the following statement True (or) False? (1) There are two types of motion. (2) Uniform motion is motion at constant speed. (3) Average velocity is a vector quantity. (4) Acceleration is a…ngelay38 (38)in behs • 6 years agolmesc moneySelect the correct word(s),notation(s), unit(s),etc given in the brackets. (7 marks) The atom without neutrons is ( hydrogen,helium,caesium). Boyle’s law can be expressed as ( v=1/p , pv=…ngelay38 (38)in laio • 6 years agonoomlayA.12x2=7x+1 B.12x2=7x-1 C.12x2=x+1 D.12x2=x-1 E.12x2=1-x 1The nuclear force is a ……. range force. (20) The ratio of mass to volume is defined as ……… . (21) The density of ice…ngelay38 (38)in laio • 6 years agonoomlayA.12x2=7x+1 B.12x2=7x-1 C.12x2=x+1 D.12x2=x-1 E.12x2=1-x The solution set of the system of equation x-y=3, x2-y2=21 is A.{(2,5)} B.{(5,2)} C. {5,2}…