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Tangents drawn from the point P()1.8) to the circle x2+y2-6x-4y-11=0 touch the circle at the points A and B. The equation of the circumcircle of the triangle PAB is A) x2+y2+4x-6y+19=0 B) x2+y2-4x-10y+19=0 C) x2+y2-2x+6y-29=0 ...

For th efunction f(x) = x cos 1/x , x>=1 A) for atleast one x in the interval [1,∞), f(x+2)-f(x)<2 B) lim x->∞ f'(x) = 1 C) for all x in the interval [1,∞) , f(x+2)-f(x) >2 D) f'(x) is strictly decreasing in ...

Can some one help me out??? Someone who's gone through the GRIND of both the school boards and then the IIT prep and after that the IIT grind... I have always wanted to get into IIT... But when I heard that the GRIND for IIT ...

The correct stability order of the following resonance structure is + - + - - + - + H2C=N=N H2C=N=N H2C=N=N H2C=N=N A) I>II>IV>III B) I>III> II>IV C) II>I>III>IV D) III>I>IV>II ...

A fair die is tossed repeatedly until a six is obtained. Let x denote the number of tosses required. The probability thta X≥3 equals A) 125/216 B) 25/36 C) 5/36 D) 25/216 ...

if a, b, c, d are unit vectors such that (axb).(cxd)=1 and a.c=1/2 then A) a,b, care non coplanar B) b,c,d are non coplanar D) b,d are non parallel D) a,d are parallel and b,c are parallel.. ...

Th espin only magnetic moment value of C2(CO)6 is A) 0 B) 2.84 C) 4.9 D)5.92 ...

let f be a non negetive functin defined on the interval [0.1]. If 0∫x 1-(f'(t))2 = 0∫xf(t)dt.. 0≤x≤1 and f(0)=0 then A) f(1/2)<1/2 and f(1/3)>1/3 B) f(1/2)>1/2 and f(1/3)>1/3 C) f(1/2)<1/2 and f(1/3)< ...

Match each of the compounds in column I with its characteristic reaction(s) in column II Column I Column II (A) CH3CH2CH2CN (p)Reduction with Pd-C/H2 (B) CH3CH2OCOCH3 (q) Reduction with SnCl2/HCl (C) CH3-CH=CH-CH2OH (r) Devel ...

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The compound Z is (A)Mg2[Fe(CN)6] (B)Fe[Fe(CN)6] (C)Fe4[Fe(CN)6]3 (D)K2Zn3[Fe(CN)6]2 ...

The compound Y is (A)MgCl2 (B)FeCl2 (C)FeCl3 (D)ZnCl2 ...

The compound(s) that exhibit(s) geometrical isomerism is(are) (A)[Pt(en)Cl2] (B)[Pt(en)2]Cl2 (C)[Pt(en)2Cl2]Cl2 (D)[Pt(NH3)2Cl2] ...

The mass of the particle is m = 1.0 x 10-30 kg and a=6.6 m the nergy of the particle in its ground state is closest to A) 0.8meV B) 8meV C) 80meV D) 800meV ...

Paragraph for Question Nos. 16 to 18 A carbonyl compound P, which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, whi ...

The correct statement(s) about the compound H3C(HO)HC-CH=CH-CH(OH)CH3 (X) is(are) (A)The total number of stereoisomers possible for X is 6 (B)The total number of diastereomers possible for X is 3 (C)If the stereochemistry abo ...

The correct statement(s) regarding defects in solids is(are) (A)Frenkel defect is usually favoured by a very small difference in the sizes of cation and anion (B)Frenkel defect is a dislocation defect (C)Trapping of an electr ...

HCl, HBr, HI have acid strength in order in aqueous solutions as:??? I thought it should be HI>HBr>HCl, but answer is given to be HI=HBr=HCl Could sumbody pls explain? ...

The reaction of P4 with X leads selectively to P4O6. The X is (A)Dry O2 (B)A mixture of O2 and N2 (C)Moist O2 (D)O2 in the presence of aqueous NaOH ...

A fair die is tossed repeatedly until a six is obtained. Let x denote the number of tosses required. The probability thta X=3 equals A) 25/216 B) 25/36 C) 5/36 D) 125/216 ...

Area bounded by the curve y=ex and lines x=0 and y=e is A) e-1 B) \int_{1}^{e}{ln(e+1-y)dy} C) e- \int_{0}^{1}{e^x dx} D) \int_{1}^{e}{ln y dy} ...

The line passing through the extremity A of the major axis and extremity B of the minor axis of the ellipese x2+9y2=9 meets its auxiliary circle at the point M. Then the area o fthe triangle with vertices at A, M and the orig ...

Let z= x+iy be a complex number where x and y are integers then the area o f rectangle whose vertices are roots of the equation zz3+zz3 = 350 is A) 48 B) 32 C) 40 D) 80 ...

wht do we mean by thermal stability of s block elements??? ...

in a soccer practice session the football is kept at centre of field 40yards from the 10ft high goal post.a goal is attempted by kicking at a speed of 64 ft/s at 45 degree to horizontal.will ball reach goal post. ...

1 just got 1 of dem from a frend.....so i m posting it here......... *Image* discuss d acidity order??? options... a..2>3>4>1 b..3>4>2>1 c..3>2>1>4 d..4>3>1>2 i guess b is correct,,,whts ur ...

*Image* A rigid container is filled with 5g of a substance of molecular wt. 50. the subtance is heated ..... What are the latent heat of fusion and evaporation? what are the Average molar specific heat of the substance in sol ...

with wat minimum speed shud a motorbike be moving on the road to safely cross a 11.7ft wide ditch with approach roads at an angle of 15 degree with the horizontal.assume length of bike is 5 ft and it leaves the road as soon a ...

plz help me how to proceed stepwise in the following questions - 1.what is the sum of the series 12-22+32-42+...-20082+20092 2.sum of the series 1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+....upto 20 terms is ?? 3.The positive intege ...