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Among the foll the least bond angle around Central atom is in A] O3 B] I3- C] NO2- D] PH3 ...

*Image* A rod of length 2m moves in horizontal x-y plane .At any instant end a of the rod is at origin and has velocity vA=2i+vyj.the other end B aty the same instant is moving with velo=vB=2i+6j.the rod makes an angle of 30Â ...

Number of quadrilaterals which can be constructed by joining the vertices of a convex polygon of 20 sides, if none of the side of the polygon is also the side of the quadrilateral is : (a) 17C4 – 15C2 (b) 15C3 .20/4 (c) 227 ...

Two concentric shells are surrounded by a conducting surface as shown in figure. Now the middle shell and outer conducting surface are connected by a conducting wire. What will be charge on surface surrounding the two shells ...

Two particles execute S.H.M. of same amplitude and frequency along the same straight line from same mean position. They cross one another without collision, when going in opposite directions, each time their displacement is 3 ...

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

*Image* ...

*Image* PLZ IGNORE THE DATA WRITTEN WITH PEN AND THE LINE SHOWING '50' ON ONE CAPACITOR AND ALSO THE OTHER LINE ON THE OTHER CAPACITOR. SOLVE THE QUESTION WITH ONLY THE PRINTED INFO C1=1 F C2= 2F L=5H initially C1 is charged ...

find the sum (nC1)2 + 2(nC2)2 + ...+ n(nCn)2 ...

Q Draw the graph of {x}/[x] and [x]/{x} and check whether there is a solution from (1,5) or not ...

a+b+c=1 then prove (1+1/a)(1+1/b)(1+1/c) >= 64 ...

In a town of population of n,a person sends 2 letters to 2 separate persons,each of whom is asked to repeat the procedure.Thus for each letter recieved,2 letters are sent to 2 separate persons chosen at random, Let P1,P2,..., ...

more than one : 1)coke acts as reducing agent 2)Cu2S remain unaffect in roasting 3)final product we get is Blister Cu due to release of CO2 4)In bessemer furance only self reduction takes place not slag formation. ...

Which will have highest dipole moment? A] BF3 B] NH3 C] NF3 D] B2H6 ...

The bond angles of NH3,NH4+,NH2- are in the order.. ...

Fermat's Little theorem states taht .... If p is prime, then P divides ap-a A good question for congruences.... To understand and implement it.... I am giving the guidelines on how to approach and solve.. see if it fits your ...

unit vectors a and b are perpendicular to each other and unit vector c is inclined at angle θ to both a and b.If c=m(a+b)+n(axb) and m,n are real.Find range of θ I have found m=cosθ...and nothing else..help me out ...

The mass per nucleon in H atom is same as in an oxygen atom ...

Find vector which is orthogonal to vector 3i+2j+6k and is coplanar with 2i+j+k and i+j-k ...

Which of the molecules will have polar bonds but zero dipole moment? A] O2 B] CHCl3 C] CF4 D] None of these ...

Largest bond angle A] H2O B] F2O C] Cl2O D] H2S ...

How to find constraint equation when pulleys are connected over a horizontal plane?Please give an example. ...

*Image* A block B of mass M is suspended from a chord of length l attached to a cart A of mass M as shown in the fig.the horizontal surface on which the cart moves is smooth .initially both the cart and the bock are at rest i ...

2MnO-4 + 5 H2O2 + 6H+ ---> 2Mn2+ + 8H2O + 5O2 Which of the following r not true ? A) H2O2 is oxidised to O2 B) H+ IS OXIDIZED TO WATER C)Oxdn no. of Mn changes by 6 D) H2O2 is reduced by H2O ...

hey freidns....do any of u have a C++ project on "SHOP inventory"[any shop] or a quiz contest that has data handling used in it...plzzzzzzzzzz helppppppppppppp ...

Given that x^3-3xy^2 = 10 and y^3-3x^2y = 30 find the value of x^2+y^2 ...

To prepare anisole, which is the best path :- *Image* It can't be the first one bcoz c -Br bond is stable due to resonance hence nucleophilic attack is not preferred. But what abt the second and third reactions ????? ...

What is Pidgeon process for preparation of Mg? ...

If |z-25i|≤15 then |max Arg. (z)-min Arg. (z)| equals to..? ...

i was giving a test in target iit and there was a question that the graph of v with respect to n of an electron and according to me it should be a rectangular hyperbola in the downwards drireciton shouldn it ...