Recent questions tagged other

(chatquestion)...(a) (b) (c) ОН CH =0 84. NaOH CH3 →(A) 99% yield. Product (A) is: На0; д 81. NO2 NO, (b) Ph-C-CH=CH O (a) Ph-C-CH =CH-Ph (d) Ph-CH2 - CH=CH-Ph NO2 (c) Ph-C- CH=CH- CH ОН onic product of the aldol addition is:

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...normal to the ellipec 4x+9y = 36 at the point P(2, /5). 66 Find the equation of the line normal to the eilipse 16x + 25y2 = 400 at the point P(-3, 16/5). %3D %3D 67 Find the equation of the line normal to the ellipse (x²/a²) +(y/b²)%3D1 which passes through the point P(x, Y1) on the ellipse. 68 The tangent to an ellipse at a point Po meets the tangent at a vertex in a point Q. Prove that the line joining the other vertex to Po is parallel to the line joining the center to Q. 69 A square is inscribed in the ellipse whose equation is (x²/16) + (y²/9) = 1. Find the coordinates 'of the vertices of the square; find the perimeter and area of the square. 70 The orbit in which the Earth travels about the sun is approximately an ellipse with the sun at one focus. The major axis of the elliptical orbit is 300,000 kilometers and...(Can someone answer this no. 68)

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...The resistance between A and B is b. 42 a 82 d. 22 c. 3.752

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Q Ogenesis , Which will make a Pemale Stouks its journey in O foctus Caoied by grandmothey O foctus Carried by mother 9 dauswe) O foeus Alter Puberty

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...should suppose to involves: (1) Carbon free radical (2) Carbanion (1) Carbon free radical (2) Carbanion (4) Carbene (3) Carbocation (3) Carbocation (4) Carbene निम्न में से एल्कोहल का निर्जलीकरण सव्वाधिक आस् 65. Which of the following alcohol undergoes 65. होगा : dehydration reaction most easily : CH, CH, ОН OH -CH, YCH, (1) CH, C-CH, OH ČH, (2) (1) CH-C-CH,-OH (2) CH, OH ОН ОН O CH-CH-CH 4) (O- -CH H-CH-CH,(4) ČH, CH,-C-CH, -CH- (3) (3) CH, CH, निम्न में से कौनसी अभिक्रिया असममिति ईथर संश्लेष सर्वाधिक उपयुक्त है : 66. Which of the following reaction is most suitable 66. for preparation of unsymmetrical ether: CH, CH, (1) CH,-C-CI + CH,-CH,-ONa → 4 - Product (1) CH;-C-CI + CH;-CH,-ONa ČH Fev = 16.5 eV

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...(3) 30 cm rigure. ce 10 cm from (3) Light converging at a point (4) Both (2) & (3) Ga A ray is incident normally on a right angled prism whose R.I. is V3 and prism angle a = 30°. on, then the distance lens 74. An astro magnifica focal leng the teles (1) 190 Deviation to the ray is equal to TC (3) 20 75. The f size (2) TC (1) (4) 2n Зп obje (1) (3) 70. A convex lens forms the image of the point object alass slah of thickness 3.cm 7.5 cm

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Work, Enorgy Pwes 2 Determine Hhe % of KE Josf by Amadl ball uban it maks elate head on calliston with ntatorany tigger tall. The mass ball i 12 timc bigges then mau f smull mas p2 Small Big M-12m minimum KE a Cm+(2m) eryod ascal AROnsryed Sence of conserva Maz P.E = E-Et m²u² a(mti2m) NE collision: aler and fiandame max-PE -1 mu? n+1 s fr eumple, i - muư [1- ty bon-elastic coll ncounter betwee inck ogether after mu² = 12 cocrgy takes pla val aticle stick after coll aric collision : la und its target w othetarget. ady spheres. Oely charged ic tele. aby an Exam Pad

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Addition of Water to a Salt Solution : Pure water is added drop by drop to a vessel of volume V filled with a salt solution of specific gravity Po which is allowed to overflow due to addition of water. Find specific gravity of solution when a volume V, of water is added. Assume uniform density of solution just after adding each drop of water. PG Physics Galaxy Videos

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...A body is projected with velocity u such that is horIZontal Tamg nu heights are same: The horizontal range is 8u2 1) 17g 14u 4) 16g on elastic collision with a ball 4u? 16u? 2) 17g 3) 17g hood

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...CH3 H. H. H. re trans-But-2-ene cis-But-2-ene (u = 0.33D) %3D In the case of solids, it is observed that the trans isomer has higher melting point than the cis form. Geometrical or cis-trans isomerism is also shown by alkenes of the types XYC = CXZ and XYC = CZW %3D...(It is given in ncert...)

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...oment of the trans 1om that...(In this cis trans isomerism possible?)

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...6....(Why didn't we resonate it further)

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...14 nidentical cells are joined in series withh two cells A and B with reversed polarities, emf of each cell 4. is E and internal resistance is r. Potential difference across cell A and B is: (n>4) 2e(1-) (1) 11 (2) 2E (4) 2E(1-) (3) nnt passing through

asked Feb 12, 2020 by balaji.thirumalai

1 answer

(chatquestion)...155. What will be frequency of dominant allele in a random mating population, in which recessive phenotypes show the frequency 4% :- (1) 6% 163 (2760% (3) 40% (4) 80%

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...From the following molar conductivities at infinite dilution, 6. A for Al,(SO,), = 858 S cm? mol-1 Am for NH,OH = 238.3 S cm? mol-1 Am for (NH,),SO, = 238.4 S cm? mol-1 %3D Calculate A for AI(OH)3

asked Feb 12, 2020 by balaji.thirumalai

1 answer

(chatquestion)...0,4 Ho0.5 Jo moue block B. lovee of B. foseoged (00(0.1)e(0j00)...(Is it correct ?)

asked Feb 12, 2020 by balaji.thirumalai

0 answers

(chatquestion)...elue mexiliub atank 24V 4v 20V 2008 OV CARSume) 20-0 Conside AB 200 10 0-(-9)=!xK 10 R=40-2 wis...(U can also do it by kirchoff loop rule..)

asked Feb 12, 2020 by balaji.thirumalai

0 answers