Recently Active Questions

is der ne function possible which has f'(x)=0 but it is not a constant function. ...

Substitution of Chlorine takes place higher temp in A. CH3Ch=CH2 B. CH2=CH2 C. CH *Image* CH D. none of the above ...

a vertical cylinder of height 100 cm contains air at a constant temperature. The top is closed bya frictionless light piston. The atmospheric pressure is equal to 75 cm. of Hg. Mercury is slowly poured over the piston. find t ...

plz tell how to decide products in cross aldol condensation? ...

I don't know whether this one is easy or not, but please help me. With which of the reagents can we bring about the following conversion in single step *Image* ?? ...

*Image* Ques1)A mass M1 lies on a fixed smooth cylinder (Above figure). An Ideal string attatched to M1 passes over the cylinder to mass M2. Show that the system is in equliibrium if Sin A = (M2/M1) Ques2) A body of mass m is ...

*Image* a projectile is fired with intial velocity of 240m/s at a target B located 600m above the point A and at horizontal distance of 3600m , negelecting air resistance , find the value of angle(theta) at which it is projec ...

Ques) Calculate the lattice energy of aslat MX(s) from the data given below:- Heat of formation of MX ( \Delta H) = -550 kj/mol Heat of sublimation of M(s) = 80 kj/mol Heat of dissociation of X2 (D) = 155 kj/mol Ionisation En ...

what is zone refining?????? ...

The equation xy-x+2y-6=0 is translated into xy=c.Find c. Explain how also :) Thanks ...

A uniform rod of mass 'm' and length 'L' is made to stand vertically on one end.What is the potential energy of the rod in this position? The answer is pure concept based.I have a few more better questions but those needs me ...

1.Why is electricity obtained on heating a thermocouple? 2. Can copper and iron be combined to make a thermocouple? 3. Is there any other scale of temperature other than the celsius, farengeit and kelvin scale? 4. What is the ...

what is thermal agitation? what is it's effect over a dielectric as the magnitude of electric field changes?? ...

If (5,12) and (24,7) are the focii of a conic passing through the origin then the eccentricity of the conic is what? ...

what is resolving limit of eye????????/ ...

*Image* In the figure mass m1=i kg and m2 = 4 kg. Find the mass M of the hanging block which will prevent the smaller block from slipping over the triangular block. All the surfaces are frictionless and the strings and the pu ...

A wedge of inclination theta is fixed with a frictionless pulley on its top.A light inextensible rope goes over the pulley.One of its ends is attached to a fixed wall.The other end is attatched to a small block of mass m kept ...

find the following limit LIMn→∞{(33-8)(43-8)(53-8).....(n3-8)}/{(33+8)(43+8)(53+8).......(n3+8)} ...

f(x)-f(y)<|x-y|7 for all reals x,y....... Is f(x) a const. function ? Well - I've solved it, but the process is not a routine type, wanna see how many can our titans come up with..... ...

a very simple question: why do molecules of highly polar molecules have energy even at the absolute zero? ...

which single factor accounts for the ability of metals to conduct electricity and heat .....???? why are ionic solids poor conductors of electricity even if they are composed of charged particles????? ...

Can any1 give me a Easy explanation of Resonance effect! THANKS IN ADVANCE ...

why H-P-H bond angle is smaller than H-N-H bond angle in NH3 ...

WHY LATTICE ENERGY OF *Image* ...

explain structure of *Image* ...

in chemical bonding i cant get what is co-ordinate bond ...

how hydrogen bonding dffects dipole moment ...

∫secx/{(sin(x+a)+sinx}^0.5 ...

if x is real then prove that the expression (x2-2xcos2θ+1)/(x2-2xcos2φ+1) lies btween sin2θ/sin2φ and cos2θ/cos2φ. ...

The normal to the curve x=a(cos t + tsin t),y=a(sin t-tcos t)at any point t is such that-- A. it makes a constant angle with the X axis B. it passes through the origin. C. it is at a constant distance from the origin. D. none ...