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Questions asked by balaji.thirumalai
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4474
questions
1
answer selected
(chatquestion)...Potential energy curve of a body of mass m = 2 kg is shown in the figure, it is released from rest at point A. Maximum distance covered by it on the positive x-axis till it momentarily comes to rest from the origin is %3D U (J) 32 A 16 22× (m)...(1/2/1.5/0.5)
other
telegram-880
asked
May 4, 2020
1
answer
(chatquestion)...many hetero atoms are present following compound is/are: H,C-O- (1) 1 (3) 3 (4) 4
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telegram-878
asked
May 4, 2020
0
answers
(chatquestion)...50 5 The value of 2 ;( 2n+ 1)! n = 0ollo (where, i = - 1) is (a) i (c) 48 + i (b) 47 – i (d) 0 1003 6 The value of 2 i' (where i = - 1) is %3D r =- 3 (a) 1 (c)i (b) – 1 (d) – i T ON REDMI Y3 UAL CAMERA...(Both Q-5 and Q-6)
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telegram-870
asked
May 4, 2020
0
answers
(chatquestion)...(C) 3 Ifa >0 and b <0, then Va b is equal to (where, i = -1) (a) - Ja-b (c) a b| %3D (b) Ja-b|i (d) None of these
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telegram-868
asked
May 4, 2020
1
answer
(chatquestion)...2 Ifi =-1, the number of values of i" +i-n for different n el is %3D (a) 1 (b) 2 (d) 4 (c) 3
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telegram-862
asked
May 4, 2020
1
answer
(chatquestion)...I Example 10. Find the value of i r=1 (where, i = -1). %3D
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telegram-857
asked
May 4, 2020
1
answer
(chatquestion)...100 I Example 9. Find the value of E (where, i = -1). in! n D0
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telegram-854
asked
May 4, 2020
1
answer
(chatquestion)...13 I Example 8. Find the value of (i" +i+1) (where, i= -1) n=1 %3D
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telegram-852
asked
May 4, 2020
1
answer
(chatquestion)...The combined equation of lines, through the origin and forming an equilateral triangle with the line 2x + By = 5 is |: (a) 7x² A8xy + 3y² = 0 (c) 23x² – 48xy + 3y = 0 (b) 23x – 48xy – 3y² = 0 (d) 7x – 48xy + 3y = 0
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telegram-271
asked
May 4, 2020
1
answer
(chatquestion)...1 If (1+ i)2n+ (1-i)2" = -2"+1 (where, i = - 1) for all those n, which are %3D (a) even (c) multiple of 3 (b) odd (d) None of these
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telegram-849
asked
May 4, 2020
1
answer
(chatquestion)...| Example 7. Dividing f(z) by z - i, where i = -1, we obtain the remainder i and dividing it by z+i, we get the remainder 1+ i. Find the remainder upon the division of f(z) by z+1....(Please solve)
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telegram-844
asked
May 3, 2020
1
answer
(chatquestion)...(4) xog 9* = 81x Ans. : x = 81 or x 9. wil...(Solve this)
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telegram-62384
asked
May 3, 2020
0
answers
(chatquestion)...The general solution for sin 4x= is: (a) пт +(-1) (-1) : 4T (c) nt + (-1)" (d) nn + (-1)" 6 3
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telegram-201
asked
May 3, 2020
0
answers
(chatquestion)...If 0.50 mol of BaCl, is mixed with 0.2 mol of Na,PO4, the maximum number of moles of Ba3(PO), that can be formed is A. 0.7 C. 0.3 B. 0.5 D. 0.1
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telegram-835
asked
May 3, 2020
1
answer
(chatquestion)...159. Following structure is related to which compound? (1) Adenine H-N (2) Guanine (3) Uracil (4) Thymine Н
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telegram-832
asked
May 3, 2020
1
answer
(chatquestion)...39. The ionic radii (in Å) of N³,0²-and F¯are respectively: [JEEM 2015, C] (b) 1.71,1.36 and 1.40 (d) 1.36, 1.71 and 1.40 (a) 1.71, 1.40 and 1.36 (c) 1.36, 1.40 and 1.71
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telegram-828
asked
May 3, 2020
1
answer
(chatquestion)...Consider the following species: CN*, CN¯,NO and CN Which one of these will have the highest bond order? A NO B CN c CN* D CN
other
telegram-826
asked
May 3, 2020
1
answer
(chatquestion)...Solve K in kti + J5KH -2UK+6...(Pls I need d solution in screenshot or type it clear 4 proofread)
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telegram-62380
asked
May 2, 2020
1
answer
(chatquestion)...Example If a relation R on the set {1, 2, 3} be defined by R = {(1, 2)}, then R is B. Transitive A. Reflexive D. None of these c. Symmetric 30 Sec! uracademy...(Ans b Anyone please help me)
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telegram-822
asked
May 2, 2020
1
answer
(chatquestion)...6:13 PM ...0.0KB/s G9 ll D Question Cause of Positive Deviation: Difference in extent of association in two liquids (H20 & CH3OH) • Association in one of the liquids through H-bonding (C2H50H & C6H6) • Greater difference in length of hydrocarbon part of members of same homologous series (n-butane & n- heptane) • Difference in polarity of liquids: General Examples are when one is polar & Other is non-polar (CCI4 & CHC13) • Greater Difference in molar mass of non-polar molecules (CCI4 & C6H6) Negative deviations from Raoult's law: Condition: Upvote 42 Share XX
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telegram-819
asked
May 2, 2020
0
answers
(chatquestion)...24. An alkene 'A' which can show both optical and geometrical isomerism with minimim molecular weight. MeaS B+C Compound C has less numbers of carbon atoms than B CH3MGCL NH CI D E+E (in equal amounts) 5% H,SO, at 0°C CHC CH- CM correct statement(s) is/are ? (A E is positional isomer of 'A' RB) E is having 7 allylic hydrogens (C) F gives immediate white turbidity with lucas reagent O) C gives yellow ppt with NaOBr
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telegram-812
asked
May 2, 2020
1
answer
(chatquestion)...(28 RIIT Academy / Zenith Booklet / Chemistry / Aliphatic Hydrucarbon Ph H/ H-C-OH O/Ag A is Ph (AT (B) B contains both keto and ester functional groups OCHO C is Ph (D) Cis Ph
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telegram-810
asked
May 2, 2020
1
answer
(chatquestion).... Incorrect order of lewis acidic character : (a) AICI, > AlBr3 > All3 (c) SF > SF4 > CCI4 (b) PCI5 > SiCl 4 > AICI3 (d) SİF4 > SiCl4 > SiBr....(Photo from Piyush Raj)
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telegram-807
asked
May 2, 2020
1
answer
(chatquestion)...Principal solutions of the equation sin 2x + cos 2x = 0, where pi< x < 2pi are
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telegram-199
asked
May 2, 2020
0
answers
(chatquestion)...In give figure expansion of spring will be :- (take g = 10 m/s2) ↑ a = 2 m/s² k = 100N/m 2kg| 4kg
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telegram-801
asked
May 1, 2020
1
answer
(chatquestion)...2. A body of mass 3 kg acted upon by a constant force is 1 displaced by S metre, given by relation S =, where t is in second. Power of the force is : E (1) constant (2) linearly increases with time (3) Increases with time as t1/2 (4) Increases with time as t/2 O radioactive nuclei „X^ emits an a (He) particle.
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telegram-798
asked
May 1, 2020
1
answer
(chatquestion)...In AABC (a – b) c cos (a +b)°sin² (a) b? (b) c? (c) a? (d) a² + b? + c?
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telegram-193
asked
May 1, 2020
0
answers
(chatquestion)...6. The number of electrons in ground state of nickel atom having m = 0 will be :- D 14 (2) 11 or 12 (3) 5 or 6 (4) 13 or 14
other
telegram-789
asked
May 1, 2020
1
answer
(chatquestion)...copper centres (1) Cytochrome oxidase (2) NADH, dehydrogenase complex (3) Cytochrome reductase (4) F-F, ATPase 159, When electron are move in electron transport chain of mitochondria which of the following changes occur? (a) pH of the matrix increases (b) ATP synthase pumps proton by active transport (c) NAD is oxidised" (1) only a L(3)b and c 160. Plants deficient of element zinc, show its effect on the biosynthesis of plant growth regulator :- (4) A 166. Whie (2) (3) (2) a and b *(4) a and c (4 167. W (2) Ethylene B....(159 Ka answer kya Hoga??)
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telegram-780
asked
May 1, 2020
1
answer
(chatquestion)...H. ОН НО H. OH O Prostaglandin E,...(How many asymmetric (stereogenic) centres are present in compound? (A) 3 (B) 4 (C) 5 (D) 6)
other
telegram-750
asked
May 1, 2020
1
answer
(chatquestion)...:0-Н :0-н :0-н CI (v) (a) (b) (c) CI...(Arrange in correct order of acidic character)
other
telegram-748
asked
May 1, 2020
1
answer
(chatquestion)...Cos 2x-sin 2x The simplified form of tan- (cos 2x+ sin 2x is:
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telegram-182
asked
May 1, 2020
0
answers
(chatquestion)...A uniform solid sphere has mass M and radius R. From it, a solid sphere of radius 2 is removed and taken to infinity. The work required by the external agent to Solid Sphere (M, R) aGM achieve this is given by Then bR b-a is Whate Ann aroun
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telegram-741
asked
Apr 30, 2020
1
answer
(chatquestion)...CH3 CH2 HBr (1 equivalent) 2. Н.С- The major product of the above reaction is : CH3 CH3 Н.С (b) Н.С (a) Br Br Н С CH3 (c) CH Н,С Br (d) CH3 Br Artiomash
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telegram-739
asked
Apr 30, 2020
1
answer
(chatquestion)...Find the amount of charge that will flow through the switch when it is closed - A. 300 uC 6µF 1ЗиF B. 400 uC с. 500 иС +200V ЗиF V-0 6µF 9. D. 100 uC
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telegram-736
asked
Apr 30, 2020
1
answer
(chatquestion)...Lot hom 11-2
other
telegram-152
asked
Apr 30, 2020
0
answers
(chatquestion)...)The simplified form of sin- (1-x) is: (1+x) (a) 2 tan-x (b) cos'x (c)5- 2 tan-i x(d) A- cos'x
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telegram-140
asked
Apr 30, 2020
1
answer
(chatquestion)...The sound level at a distance 3.00 m from a point source is 120 dB. At what distance will the sound level be 100 dB.
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telegram-729
asked
Apr 30, 2020
1
answer
(chatquestion)...Ad-block metal ion with d" configuration forms tetrahedral complex but its spin magnetic moment remains same either with 4H,0 or with 4CI ligand, which of the following statements are INCORRECT ? (A) Element always form a colourless compound (B) Number of electrons in e-set of d-orbitals are always higher than in t,-set of d-orbitals (C) It can have d' or d configuration (D) Colour of the complexes must be same
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telegram-727
asked
Apr 30, 2020
1
answer
(chatquestion)...) The simplified form of sin- + sec-! is: (b) (c) (a) (d)
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telegram-94
asked
Apr 30, 2020
1
answer
(chatquestion)...If cot 0 - tan 0 2, then general value of 0 is:
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telegram-90
asked
Apr 30, 2020
1
answer
(chatquestion)...A uniform solid sphere of Mass M and radius a is cut into two by a diametrical plane. The resultant force of attraction between the two halves is 3GM2 (A) 8a2 (B) 9GM2 3GM2 (C) 16a2 9GM2 (D) 40a2 20a2
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telegram-715
asked
Apr 30, 2020
1
answer
(chatquestion)...Imotion (B) Time period of one complete oscillation is 2. GTP ACA (C) Time period of one complete oscillation is 3 2GTP (D) Time period of one complete oscillation is GTp A uniform solid sphere of Mass M and radius a is cut into two by a diametrical plane. The resultant force of attraction between the two halves is 3GM2 (A) 9GM2 (B) 20a2 3GM? (C) 16a2 9GM2 (D) 40a2 8a2 Rao IIT Academy 34 Wehsite : wau
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telegram-713
asked
Apr 30, 2020
1
answer
(chatquestion)...[8. Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis? (a) Less than 1% Jo 2-10% (d) 50% (c) 30%...(Iska answer agar option hota to 1-5% nhi hota kya? Kab 1-5% hota hai answer or kab 2-10% hota answer?)
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telegram-711
asked
Apr 30, 2020
1
answer
(chatquestion)...If sin x+ cos x-1, then general value of x is: (a) nn t (b) 2nn + 4 4 (c) 2nn t (d) nn-
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telegram-79
asked
Apr 30, 2020
1
answer
(chatquestion)...If 3 cosx - sinx =1, then general value of x is: (a) 2nx t (b) 2nn t (c) 2na +- (d) nn + (-1)": 비3
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telegram-75
asked
Apr 30, 2020
0
answers
(chatquestion)...WHAT IS 4
other
telegram-64
asked
Apr 29, 2020
1
answer
(chatquestion)...If tan 20 tane = 1, then general value of 0 is: (a) (b) (n + 2) n+ (c) (n+ (d) (n + 2) KIM
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telegram-46
asked
Apr 29, 2020
0
answers
(chatquestion)...1.05. AM=-ve (3) 1.19 V 26.912 V (1) (4) 2.05 V A solid dissolves in water exothermically, if its saturated solution at 20°C is cooled to 0°C than:- (1) Some solid separates out 62. (3) 62. एक पर (2) Some ice separates out (3) Both the solid and ice separate (1 28oc (4) Neither the solid nor the ice separates out 63. Which of the following compounds is most reactive | 63. towards nucleophilic acyl substitution :- Slae)...(Qno.62)
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telegram-694
asked
Apr 29, 2020
0
answers
(chatquestion)...12. A rope passes over a pulley has a ladder with a man of mass m on one end while another mass M on its other end as shown in the figure. M Initially system is at rest. The man climbs up with velocity Vo relative to ladder. If all strings and pulleys are ideal then the velocity of centre of mass of this system is mV, (1) 2M MV (2) M+m mV. (3) М+ т MV, (4) 2(M +m)
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telegram-690
asked
Apr 28, 2020
0
answers
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