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(chatquestion)...14) If – 2 < [a] < 2, – 1 < [ b] < 1, – 3 < [c] < 3 where [ ] is a maximum integer function. |[a]+1 [b] [c] then the value of D = [a] [b]+1_ [c] [b) (c)+1] is %3D [a] (D) 1 (C) 0 (A) 5 (B) – 5

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(chatquestion)...(c) light A wasteful process which involves oxidation of organic compounds in plants in present of light is called: (a) Photorespiration Hill's reaction Which of the following would not be limiting factor for photosynthesis? (a) Chlorophyll (c) Carbon dioxide d) water 143. (b) PCR cycle (d) Bioluminescence 144. xprjeh ight way Temperature minerals is reguired by pants in

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(chatquestion)...L+t, = 1 and if u u, thent =t= 0.5 Illustrations Equal volumes of 0.015 M CH,COOH & 0.015 M NAOH are mixed together. What would be molar conductivity of mixture if conductivity of CH COONA is 6.3 x10 (1) 8.4 S cm2 mo (3) 4.2 S cm2 mo ation 5. S cm-1 (2) 84 S cm2 mol (4) 42 S cm2 mol 6.3x10x10000-008 84 S cm? mol 0.015 M: Am Salt) = %3D 0.015/2 id is 16 x 10-5 and the molar conductivity at infinite

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(chatquestion)...(c) 1-butene (d) butanoic acid 7. Arrange the acidity of given four compounds in decreasing order : CH3-C-CH2-Ĉ–CH3 ; CH3-C-CH3; CH=CH; CH3-CHO (TV) (II) Select correct option: (a) I>V> II> IV (c) II >I>IV > II 8. Which of the following structures will give a positive teśt with Tollens' reagent? (b) I> IV > II > II (d) II >JV > I > II

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(chatquestion)...You nelod With an Aparatul, 9 Cell expert a cell extenstive Colgi (a) Make a lot (6) Geevrete lot of materiel 0 Perfirm photosinthesis (d) ATP. Store food.

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(chatquestion)...Factorize this:- 68*-58y- 2.

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(chatquestion)...Find the number of positive integers greater than 6000 and less than 7000 which are divisible by 5,provided that no digit is to be repeated

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(chatquestion)...Time (a) N Scholars caught, marked and released 80 fishes in a pond. Later 100 fish were caught at random. 40 of them were marked. The number of fishes in the pond is- IV V (b) d (c) b 115 (d) (b-d) (a) 400 (b) 200 (c) 100 (d) 50 116. (i) 124. sity (N)

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(chatquestion)...that is being coded isATACG then the nucleotide sequence in the MRNÀ would be 13 (1) TATGC (2) TCTGG (3) UAUGC (4) UATGC 124. JAfter a mutation at a genetic locus the character of an organism changes due to change in (1) Protein structure •(2) DNA replication 3 Protein synthesis pattern (4) RNA transcription pattern 25, During replication of a bacterial chromosome DN synthesis starts from a replication origin site an

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(chatquestion)...The correct decreasing order of pK, is ОН ОН ОН ОН Cl OCH3 NO2 (II) CH3 (II) (IV) (I) (b) IV>II> III >1 (d) IV>I>I > III Jat II > IV >I>III (c) III> II>IV>I

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(chatquestion)...13.) Find the equation of the straight line passing through the points (-1, 2) and (5, -1) and also find the area of the triangle formed by it with the axes of co-ordinates. /4

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(chatquestion)...PAGE NO DATE follenwing Mrongest Among (3) (a) Not (0)

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(chatquestion)...(etybeextonsion in sbring, Here enerGy is conser ved, Iky-t I mvtt I I v =const at RZ R2 rgx + amy+ aVI =0 -ky R- T: 27 SHOT ON REDMI 7 AI DUAL CAMERA

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(chatquestion)...of |к (3) 4n VM 1 K (4) on of a s nel is pall VM TO 5. A disc of mass 'M' and radii 'R' is attaced with spring of spring constant 'K'. The time period of oscillation of disc spring system is minute inute 2M + 2R? uniform disc of Pout an axis d passing from R2 (1) 2n (2) 2n 2п (3) M+1 (4) 2T enter of disc is KR? R? Two mutually perpendicular simple harmonic 6. L vibration of same frequency superimpose on each

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(chatquestion)...17. Find the equation of the plane passing through the point (-1, 3, 2) and perpendicular to each of the planes x+ 2y + 3z 5 and 3x + 3y+z=0.

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(chatquestion)...Find the area bounded by the curve ay? = x(a – x) as a loop. %3D

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(chatquestion)...bounded by the curve y = (x - 1)(x - 2)(x – 3) and the lines x = 0 and Find the area x = 3.

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(chatquestion)...|(b+c)² a? a² b² (b) c² г9 (a +b)? (c+a)² c²

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(chatquestion)...Physics A particle in S.H.M. crosses its equilibrium position at time t = 2 sec. When the motion advances by one second more, its velocity is %3D found to be T/3 m/s. If the frequency of the motion is 1/6 s, find the amplitude of the motion in a meter. A. 3 B. 2 C. 4 D. 5

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(chatquestion)...2nfactedeng uaiform thurged Shag is plased along 2 lanis itl linecen chcolged density te (29,0,0) then uok dea poriE1on agent. moued point Change q ex torn al cuill be Kd en2 c)kdg en 2 B) 29 O -2kd9 en 2

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(chatquestion)...A circle is drawn to touch the four sides of a quadrilateral PQRS. If O is the centre of the circle, prove that ZPOQ + ZROS = 180°. [3]

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(chatquestion)...is placed along ) tn infurete deng emifarm tharged Shag ling uniform churged sting 1 laxis ilsl linecor chcolged denslty 1s d A frem portion ex tormal point chaorge slowly i8 monell donu (a,0,0) to/ (29, 0,0) then cuock cuill be. agent Kd enz c) Zkdg en 2 - Kd q B) d) -2*d q en 2

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(chatquestion)...halo R-C=CH + HOCI - →R-C-CHCL,

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(chatquestion)...Two vectors A and B Ā and are such that Ā+B = Ā-B. Then select incorrect atternative %3D (1) Ā.B = 0 (2) Ā×B = Ō . (3) Ā = Ō (4) B = Ō

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(chatquestion)...(3) OH- in the first step (4) Either H* or OH- in first step P; The major 11. CH,-CH=CH, + HOBR - product 'P' is (1) CH,-CH-CH, ОН Br (2) CH,-CH-CH, ОН Вг (3) CH,-CH,- CH, Br ОН Br (4) CH,-C-CH, ОН CI-I 12. CH,-CH=CH, -E, P, P is (1) CH,-CH-CH, CI 3. (2) CH,-CH-CH, CI (3) CH,-C-CH, (4) CH,-CH,-

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(chatquestion)...The energy of a hydrogen atom in ground state is -13.6 eV. The energy o1 Het ion in the first excited state will be a) -13.6 eV b) -27.2 eV (201 c) -54.4 eV d) -6.8 eV

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(chatquestion)...A building is 0m long and 20m high, A man fires a bullet x meters from the building as shown in figure, so that the bullet just clears the front and back tops of the building if the time of flight is 5 sec then the value of x is nearly (g =10m/ s') 4 2u6s в 20m ucose 30 m (1) 7.4 m 5=Zus (2) 14.8 m Sucos'e (3) 10 m 2.

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(chatquestion)...9. An electron is in an excited state in a hydrogen like atom. It has a total energy of -3.4 eV. The kinetic energy of the electron is E and its de Broglie wavelength is 2. Then a) E=6.8 eV, 1 = 6.6×10¬10 b) E= 3.4 eV, 2 = 6.6 ×10-10 c) E=3.4 eV, = 6.6 × 10-11 d) E=6.8 eV, 1 = 6.6×10¬11

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(chatquestion)...Let O(0, 0), A(2, 0) and B(1, 1/ /3 ) be the vertices of a triangle. Let R be the region consisting of the all those points P inside AOAB which satisfy d(P, OA) s min. {d(P, OB), d(P, AB)} where d denotes the distances from the point to the corresponding line. Sketch the region R and find its [1997 C, 3] 7. area. llel to the line v = mx and vertices P, Q and S on the

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(chatquestion)...Let O(0, 0), A(2, 0) and B(1, 1//3) be the vertices of a tnangle. Let the all those points P inside AOAB which satisfy d(P, OA) s min. {d(P, OB), d(P, AB)} where d denotes the distances from the point to the corresponding line. Sketch the region R and find its 7. [1997 C, 3] area. my and vertices P. Q and S on the

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(chatquestion)...R. ER

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(chatquestion)...A straight line L with negative slope passes through the point (8, 2) and cuts the pos coordinate axes at points P and Q. Find the absolute minimum value of OP + 0Q, as Lya where O is the origin. [2002, 5] erdinate plane a new distance d(P, Q) is defined

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(chatquestion)...SISsdoboi For converting ROH to RCI, SOCI, is preffered reagent why? 1.

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(chatquestion)...Hz/Ni 2. 5/3k

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(chatquestion)...3. The correct order of acidic strength is:- (1) CH,COOH < HCN < H,O < CH,OH (2) CH COOH > HCN > H,O > C,H,OH (3) HCN > CH,COOH > H,O > CH OH (4) CH COOH > HCN > CH,OH > H,O

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(chatquestion)...27. The incorrect statement is (a) the spin-only magnetic moments of [Fe(H,0),J* and [Cr(H,O)6]²- are nearly similar (b) the gemstone, ruby, has Cr³* ions occupying the octahedral sites of beryl 34. (c) the color of [CoCl(NH3)s] is violet as it absorbs the yellow light O) the spin-only magnetic moment of [Ni(NH;),(H;0);F" is 2.83 B.M. (April 2019)

asked Jan 27, 2020 by balaji.thirumalai

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(chatquestion)...How many electrons must be removed from a piece of metal to give it a positive charge of 0.0000007c

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(chatquestion)...if all arrangements formed using all the letters of the word "Krishna" are arranged in the orderof dictionary, then what will be the rank of that word

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(chatquestion)...1:49 AM 29% 6 Clay6 Student Help Co 3,026 members, 53 online new question submitted to tutor... For solution, please follow this lin 7782... 1:24 AM Avantika joined the group Ann Malik ) गयरे Please help 1:47 AM c6studenthelpbot Aman Please help new question submitted to tutor... For solution, please follow this link...157783.. 1:47 AM New Messages v Aman Malik Lafotudanthalnhnt Message

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(chatquestion)...Blon)gt atelon] NABO, + How Centhis Rx ma ole to forUoard चंडे कि र गिँरबी Oyaddiny Borax Diof toans l, & Ng माmy

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(chatquestion)...18. Hydrolysis of one mole of peroxodisulphuric acid produces (a) two moles of sulphuric acid (b) two moles of peroxomonosulphuric acid (c) one mole of sulphuric acid and one mole of peroxomonosulphuric acid (d) one mole of sulphuric acid, one mole of peroxomonosulphuric acid and one mole of hydrogen peroxide. 28. (1996) 29.

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(chatquestion)...mg /aui elther

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(chatquestion)...44. A point charge Q is placed in uniform clectric field E = E,i +E,j at position (a, b). Find work %3D done by the electric field in moving it to position (c, d) :- Zero (2) (E,(c – a) + E,(d-b)})Q 156 (3) (E, ac + E, bd}Q (4) (E,c +'E,4}Q

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(chatquestion)...hc hc ф+1mv, mVz तेच

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(chatquestion)...If the surface of a metal succesively exposed to 37. 350 nm and radiation of/wavelength 2, 2, = 450nm the maximum velocity of photoelectrons will differ by a factor of 2. The work function of this metal is :- 2. (1) 2.8 × 10-20 (2) 6.1 x 10-17 J (3) 3.2 × 10-18 (4) 4.0 x 10-19 J

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(chatquestion)...An assembly of identical spring-mass systems is placed on a smooth horizontal surface as shown. At this instant, the springs are relaxed. The left mass is displaced to the left and the right mass is displaced to the right by same distance and released. The resulting collision is elastic. The time period of the oscillations of system is 2m (1) 2T m (2) 2T, (4) 2T, 57 tal oscillation has faur 52

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(chatquestion)...H1982 (2) Which reaction is not part of proton-proton cycle :- 8. (1)HÍ + ,H' → ¡H² + ß* + v + Q (2) ,H² + ¡H² → 2He³ + on! + Q (30H + H! → 2HE³ + Q (4) „He³ + 2HE³ → „He + 2(,H') + Q atod in Watts in the circuit

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(chatquestion)...In a Young's double slit experiment, separation d is 0.3 mm and the screen distance D is 1 m. A parallel beam of light of wavelength incident on the slits at angle a as shown in figure. On the Q.1 Screen the slit y 600 is d. the point O is screen, equidistant from the slits and distance PO Which of the following statements(s) is/are correct ? is 11.0 mm. D

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(chatquestion)...0.36 A. For a = degree, there will be destructive interference at point O B. Fringe spacing depends on a. 0.36 degree, there will be destructive interference at point P. C. For a = D. For a = 0, there will be constructive interference at point P.

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(chatquestion)...0.36 A. For a = degree, there will be destructive interference at point O B. Fringe spacing depends on a. 0.36 degree, there will be destructive interference at point P. C. For a = D. For a = 0, there will be constructive interference at point P.

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