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(chatquestion)...1oloru , ১৭2 ম 6-8 H,৩ 6-० 3१४o1 Molarityz vojmshergh ঠা০ 2X11:2=Volm
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telegram-46169
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...8. The concentration of a solution of H,O, is 6.8%(w/V) then the volume concentration of the solution is:- (1) 22.4 (3) 20 (2) 11.2 (4) 5 ling ogual
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telegram-46149
asked
Jan 20, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...positively dnu iegativcry 10. Which of the following oxide is expected to react readily with NaOH? (1) Na,0 (2) Cao (3) NO (4) Cl,0,
other
telegram-46144
asked
Jan 20, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Five identical capacitors, of capacitance 20 µF each, are connected to a battery of 150 V, 7. in a combination as shown in the diagram. What is the total amount of charge stored ? (A) 15 x 10-3C (B) 12 x 10-3 c (C) 10 x 10-3 C (D) 3 x 10-3C
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telegram-46139
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...IA for aSanade npat A then c ItA) 7A= AD
other
telegram-46130
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...466. Phenol is less acidic than: (d) picric aci (a) acetic acid (b) p-methoxy phenol (c) p-nitrophenol [F] Kinetic/Thermodynamic Parameters of Organic Reactions 47 467. Correct energy profile for amine inversion and hybridization of nitrogen in transi is:
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telegram-46119
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Arant of F, generation has genotype AABECC. On selling of this plant what is phenotypic ratio in FE, generation 5. (3) 1:1 (1) 3:1 1219:3:3:1 (4) 27 : 9:9:9:3:3:3:1 A character which is expressed in a hybrid is called
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telegram-46106
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...CH-HL-14 IITJEE-1920 EXERCISE -3 1. CI HаС— сн—СH2CI Cl2 Product(trichloro derivative) hv Number of possible products are
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telegram-46102
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...A weight of mass m is suspended from a fixed poin by a light elastic string of modulus 2 mg and natura length 0.5 m. It performs SHM about the equilibriun position in a vertical line. The length of equivaleny simple pendulum is (a) 0.5 m (c) 0.25 m (b) 1m (d) 0.75 m
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telegram-46099
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...(3) HV 13. A rectangular, a square, a circular and an elliptical loop, all in the (x-y) plane, are moving out of a uniform magnetic field with a constant velocity, V =vi. The magnetic field is directed along the negative z axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for :- e [AIPMT 2009] (1) the rectangular, circular and elliptical loops (2) the circular and the elliptical loops (3) only the elliptical loop (4) any of the four loops A conducting circCular loop is placed in a uniform magnelic field 14. 0 04 Twith its plone nern os to the
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telegram-46097
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Theorem ISC Mathematics – XI 10 -84 (ii) is 1024x10 + 640x + ax + bx? + 55 mial theorem of 2x +- .. 9. (ii) coefficient of x in (3x -2) 2x+- a and b; 2 () Tg =-3432, 10 2x+ the third and the fourth terms in the expansion of -1792 3. (1) (ii) 462 [ISC (ar+ g -,n=6, p = "g="C6 11 5. "C,pn-3 n-6 11 .If and the coefficient of x in ax?. ax + +. bx bx) 1. Hint. "Cs [AIEEE 2005, ISC] d the relation between a and b. %3D a)", the first three terms are 1, 56 and 1372 respectively. W. 14 11. (a) 12. 25 .3 in the expansion of .2 HINTS &Type Solved Ex. 16. (r+2)th terms in the expansions of (1+x) are e . Here, 4th term from the er 11. The expansion of (1+ ax) the binomial expansion in powers of x of (1+ ar)* and of Cxpansion of ( Singa 3. (AIEEE 2004 UNIHO /-
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telegram-46093
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Problem 1: C,H2+ Cl, h C;H,,CI- Na/ether (C) (A) (B) Only one structure of B is possible (A), (B) and (C) are CH3 CH3 CH3 CH3 (A) CH3-C- CH3 CH3 -C- CH,CI CH2 - C- CH2 - CH2 - C - CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 - C- CH,CH3 CHa - CH2 - C -С -CH,CHз (B) CH3 - CH – CH,CH3 CI CH3 CH3 (C) both are correct (D) none is correct
other
telegram-46085
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...45. N2 +3H2 = Z 2NH3 ; K, = N2 +Oz 2NO; K2 librium The following equilibrium given by keL Hz +0,=H,0; K, the equilibrium constant of the reaction EE 2008] 2NH3 + O, 2NO +3H,O in terms of K, K2 and K, is [CBSE PMT 2003, 07] P following К.к (a) (b) K,K,K3 ET 2000] K1 (d) K,K? K2 K;K2 (c) Dze) the K3 g form 46. If for H2i +Szis H,Sig) and +3. "MT 2013]
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telegram-46079
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...fon 1: Arrange the C-H bonds labelled 1, 2, 3 and 4 in the molecule (given below) in increasing order of their ease for homolytic fission. 3 3H 2 H Н. 4. CHз H. (A) 4 < 2 < 3 < 1 (C) 4 <1<2< 3 (B) 1< 3 < 2 < 4 (D) 2< 4 <1< 3
other
telegram-46076
asked
Jan 20, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...friction u = 0.8. Force of friction between block (1) 8 N (2) 4 N and the plane at t = 2s is :- (3) 2 N एक R त्रिज्या के वृत्ताकार प्लेट से एक वर्ग जाता है जिसका विक्ण वृत्त की त्रिज्या है द्रव्यमान केन्द्र वृत्त के केन्द्र से दूरी पर (4) 32 1 (3) 2 N From a circular disc of radius R, a square is cut out (2) 4 N (4) 32 N 43. 43. with a radius as its diagonal. The center of mass of remainder part is at a distance (from the centre):- 22. K 4/ 64 R. (1) (2) (2) (1) (4-2) (3) (T-2) (4) (2т - 2) 24. (4T-2) 2т एक सरल आवर्त गति करते x A sin (ot + 6) 44. The displacement time equation of a particle executing 44. SHM is : x = A sin (ot + 4). At time t = 0 position of the particle is x = A/2 and it is moving along negative x-direction. Then the angle o can be: T/6 Calculate heat given to gas during process ABA in figure x = A/2 हो तथा कण की का मान (2) T/ 45. दिये गए प्रक्रम ABA अनुदिश हो तो 25. ( 1) π/6 (3) 2T/3 (4) 5T/6 (2) T/3 26. V in
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telegram-46054
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...The variation of potential with distance x from a fixed point is shown in figure. The electric field at x =13 m is 68. %3D V(volt) 60 45 9 30 20 10 + x(m) 8 10 12 14 16 2 4 6 0. (2) –7.5 volt/meter (1) 7.5 volt/meter (3)5 volt/meter (4) –5 volt/meter (not to scale)
other
telegram-46050
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...ा. + 52८ । ०ु 5y=-25 अ) J2 +34 + 5y= -15 +5z +306 - 15 find IgZ ि्ह हेपाले
other
telegram-46039
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Solre the euecton! 2²-(y-z)=10 -(--22)=D5 m. 4 - 2-x)= s (Gxo y) = 2 2. %3D
other
telegram-46037
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...The ratio of de broglie wavelength of molecule of helium at 27 degree c &hydrogen at 227 degree c is root under 2+a by 2a .The value of a is ?
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telegram-46030
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...24. The ratio of de-Broglie wavelengths of molecule of 2+a helium at 27°C and hydrogen at 227°C is 2a The value of a is (1) 3 (2) 5 (3) 2 (4) 6
other
telegram-46027
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Quastion Show that Hhe peried of a Simple perclulum.
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telegram-46021
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...80. CH2 = CH-C=C–CH= CH2 %3D II Which of the following orders is correct for heat of combustion of these isomers ? (2) II > I (4) Not predictable (3) I = II 84
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telegram-46018
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...(d) PCI3 (J & K CET) 38. The bond length of HCI bond is 2.29 × 100 m. The percentage ionic character of HCl, if measured dipole moment is 6.226 × 10 *º C m, is (a) 8% (c) 17% (b) 20 % (d) 50 % (JIPMER)
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telegram-46016
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...angles trianglo PQR, then Cosq in equal to Ik P, Q,R are COSR the value COSP COSQ CosP
other
telegram-46014
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Page No. Date preduct AandB in the follouwis I The major reactions are: cu Denexide, CAJ Meat and (B) A= JeyeN ernd B and (P) t= and B= %3D
other
telegram-46010
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...What is metal excess defect due to presence of extra cations?
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telegram-46008
asked
Jan 20, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...NO A compound AB crystallizes in bcc lattice with unit cell edge length of 380 pm. Calculate. (i) The distance between oppositely charged ions in the lattice. Radius of A* if radius of B- is 175 pm.
other
telegram-46002
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Example 18 : Calculate the value of Avogadro's number from the given data if density of NaCl = 2.165 g/cm? Distance between Na* and CF in NaCl = 281 pm and MNaci = 58.5 g/mol. fce. +r) or a = 2 x distance between nearest neighbours For NaCl structure, a = 2( Solution: 2/2r a = 2 x 281 = 562 pm% = 562 x 10-10 cm Zx M No x a Zx M No pxa 4x 58.5 No 2.165 x (562x 1010) On calculation Avogadro's Number = 6.02 x 1023 mol-1
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telegram-46000
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...du wonces
other
telegram-45998
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...ा. + 52८ । ०ु 5y=-25 अ) J2 +34 + 5y= -15 +5z +306 - 15 find IgZ ि्ह हेपाले
other
telegram-45996
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Solre the euecton! 2²-(y-z)=10 -(--22)=D5 m. 4 - 2-x)= s (Gxo y) = 2 2. %3D
other
telegram-45994
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...x (x²-1) is equal to Number of integers in the range of the function f(x) = %3D x* -x² +1 (D) 4 (C) 3 (B) 2 (A)1
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telegram-45989
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...f 2c f Find the Value of
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telegram-45987
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Straight Objective Type This section contains 30 multiple choice questions numbered 1 to 30. Each question has 4 cholces (A), (B), (C) and (D), out of which ONLY ONE is correct. x - 3x +2 x2 +2x -3 The function f(x) = 1. (B) has a minimum value at x = 3 (D) is decreasing in its domain (A) has a maximum value at x =-3 (C) is increasing in its domain The total number of 4 digit numbers which have digits in decreasing order (from left to right) such that number is divisible by 4 is (A) 110 (C) 112 2. (B) 118 (D) 111 If in a triangle R(b + c) = a bc , then the triangle is (A) equilateral (C) right angled 3. (B) obtuse angled (D) nothing can be said A tangent is drawn to a parabola at the point (12, 6) to meet the directrix at 2 If focus lies 4. on x-axis, then equation of parabola is (A) y = 4x (C) y = 4(x + 3) (B) y = 4(x-3) (D) none of these
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telegram-45985
asked
Jan 19, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...body after 2s is : the Gc=ims2 (2) 25 ms-2 (3) 15 ms(4) 7 ms-2 (1) 2 ms-2 A sphere of mass m, moving with velocity v, enters a hanging bag of sand and stops. If the mass of the bag is M and it is raised by height h, then the velocity of the sphere was : By LOCD Linear Mon. mV=(mmsyet 5. M+m (1) /2 gh By /2gh LOC of Eney (2) m Vsystem /2gh m 2 gh fm Owe get /2 gh om om of (3) M+m (4) V=[MMNgh E Two solid rubber balls A and B having mases ma 200 and 400 g, respectively, are moving in opposite directions with velocity of A equal to Vel. -0.3 m/s. After collision, the two balls come to rest, Aia to daw o Cons miXU,tmXV2 (2) 1.5 m/s A Both the ball me to rest after m2=0-4bg. then the velocity of B is : (1) 0.15 m/s2 Y0:3 Ho 4XU0 V=02X0.3 0.4 (3) 0.10 m/s (4) None of above ousim-mik, +m M 7. 41 A particle is moving on a circular path of radius with uniform velocity v. The changein velocity when the particle moves from P to Q'isZPOQ = 40°) Suppse at the PÅ 9 m the ireuler Path the Paut Ve 0-40 vel. V. if (1) 2v cos 40° (2) 2v sin 40° (3) 2v sin 20 8. (4) 2v cos 20° A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the nth power of R. If the period of rotation of the particle is T, then: (1) Toc R (2) Toc R for any n (3) To R2 (4) Toc Ra/2 100
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telegram-45976
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Paper-1-Physics Equivalent resistance between A and B is (up to two decimal places) 1Q 19 12 1.33 Accepted Answers 1.37 1.36
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telegram-45965
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...dy find dx (12. If y= (sin' x)*
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telegram-45961
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...8. Solve V1+x V1+ y° dx + xydy= 0 .(Mar-2009)
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telegram-45959
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...138 QUESTION 6 Given that Ea for a certain biological reaction is 48 kJ/mol and that the rate constant is 0.025 s at 15°C, what is the rate constant ( in s )at 37°C? Express answer in 3 decimal places. Save All A Click Save and Submit to save and submit. Click Save All Answers to save all answers.
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telegram-45955
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Cach ouier and cross each other at T/x the find x. 6 7. Two identical springs are fixed at one end and masses 1 and 4 kg are suspended at their o end. They are both stretched down from this mean position and let go simultaneously. If tuhey are in same phase every 4 sec and the spring constant is T then find x. A small body of mass m is connected to two horizontal springs of elastic constant k, natural length 3d/4. In the equilibrium position both springs are stretched to length d, as shown in figure. What will be the d. ratio of period of the motion (Tb/Ta) if the body is displaced horizontally by a small distance where Ta is the time period when the particle oscillates along the line of springs and Tb is time period when the particle oscillates perpendicular to the plane of the figure? Neglect effects of gravity.
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telegram-45952
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...glass stab aube has Side length a A zay f light (AB) is incicdent hermally after screan on fa0 and the ind fhe $head & the The aube abaut te 6gune Immedialelyy altey the sbot s on ककमुन्च् ceube begine tov GH caeg screen. %3D
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telegram-45949
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...4T1 B-Mo
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telegram-45945
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Whole system shown is at rest. Pulley and string are massless. Force on the pulley due to hinge is : दर्शाया गया सम्पूर्ण निकाय विरामावस्था में है । डोरी व घिरनी द्रव्यमानहीन है, कीली (hinge) के कारण घिरनी पर कुल बल है: Hinge/कीली 10 kg ЩШ
other
telegram-45942
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...A thin square plate of mass m and side 'a' is hinged about AB so as to execute small oscillations about AB. oscillations is The time period of (A) 2n g. 2a (B) 2т. 3g (C) 2n 6g (D) none of these
other
telegram-45931
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...(4) A-(i), B-(ii), C-(v), D-(iii), E-(iv) 139. How many enzymes in the list given below act on protein in alkaline medium ? Trypsin, Pepsin, Sucrase, Aminopeptidase, Lactase, Rennin, Carboxypeptidase, Nuclease, Chymotrypsin, Elastase (1) Six (4) Five (2) Three (3) Four soth are
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telegram-45915
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...properties, weatial Caleutes Peacent oge eer of root). %3D number ] 20. Use differentials to find an approximate value for y = 1.02+1.02 04566) 221778 nth
other
telegram-45913
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...properties, weatial Caleutes Peacent oge eer of root). %3D number ] 20. Use differentials to find an approximate value for y = 1.02+1.02 04566) 221778 nth
other
telegram-45904
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Most basic 'N' in following molecule is :- NH, O. (3) C (2) B (4) D (1) A
other
telegram-45901
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...The number of electrons in ground state of nickel 28- 46. atom having m = 0 will be :- (2) 11 or 12 (3) 5 or 6 (4) 13 or 14
other
telegram-45900
asked
Jan 19, 2020
by
balaji.thirumalai
2
answers
(chatquestion)...properties, weatial Caleutes Peacent oge eer of root). %3D number ] 20. Use differentials to find an approximate value for y = 1.02+1.02 04566) 221778 nth
other
telegram-45889
asked
Jan 19, 2020
by
balaji.thirumalai
0
answers
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