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lim(x→0) 1/x2-1/(xsinx) ...

Dipole moment of p-nitroaniline when compared to nitrobenzene (X) and aniline (Y) will be 1. Smaller than both X and Y 2. Greater than both X and Y 3. Greater than Y but smaller than X 4. Equal to zero ans is 2 I want explana ...

NH3 has much higher boiling point than PH3 because ...

Ammonia reacts with excess chlorine to form ...

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The ratio of half life and two third life (t2/3) for a second order kinetics is 1. 3 : 4 2. 2 : 3 3. 3 : 2 4. 1 : 2 ans - 4 I want explanation ...

find dy/dx where y=tan-1(2x/(1-x2)) ...

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find dy/dx, y=(x-2)/[(x-1)(x+2)] ...

find dy/dx at x=2, y=x2/(1+x2) ...

The cleaning action of soap is due to ...

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1) If ( a , a2 ) be a point lies inside the triangle having sides along the lines 2x+3y=1 , x+2y = 3 & y = mx - 3m where m belongs to (-∞,-1/2) u (0,∞) then a lies in the region (A) a ε R (B) a ε (-3/2 , -1 ) (C) a ε ( ...

the points (0,2) (-2,0) (2,4) are vertices of a ...

1)STATEMENT 1 : If current flows through a wire of non uniform cross section potential difference per unit length of the wire in the direction of current is same at different points STATEMENT 2 : Current in the wire is same t ...

1) Let y = (x2 + ax + b) / (x2 + px + q) , where α, β a real roots of x2 + ax + b & β,γ are real roots of x2 + px + q = 0 such that α<β<γ STATEMENT 1 : For all x ε R - { β , γ } , the range of y is all real ST ...

The units of rate of reaction are ...

The hybridisation in PH3 molecule is ...

lim-x→0 xx= ...

Find the sum of all multiples of 5 between 201 and 500 ...

Which water will be more acidic: a simple rainwater or that accompanied with thunderstorm? ...

if 1=5 2=25 3=125 4=625 5=? ...

If the radius of K+ & F- are 130 pm & 135 pm respectively, the distance between K+ & F- in KF is ...

Let the roots of f(x)=x be α and β where f(x) is a quadratic polynomial. It is true that α,β also satisfies f(f(x))=x. Let the other roots of the eqn. f(f(x))=x be γ and δ. Now Correct statements are: ...

i)AgNO3 when reacted with dilute hypo gives white ppt( A )first then turns black (B) then ...

The hybrid state of S in SO3 is similar to that of ...

find eqn. of tangent to ellipse x2/8+y2/4=1 which is perpendicular to line x+2y+5=0 ...