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In which compound C-H bond length is minimum ?? A. Ethane B. Ethene C. 1,2-dibromoethane D. 2-dibromoethane ...

If f:R→R is a monotonic,differentiable real valued function a,b are two real numbers and ∫f(x)+f(a))(f(x)-f(a))dx=I1 upper limit→ b and lower limit→a ∫x(b-f-1(x))dx=I2 upper limit→f(b) lower limit→f(a) I2/I1=___ ...

Ques1) Let a,b,c are respectively the sum of the first n terms, the next n terms, and the next n terms of a G.P. Show that a,b,c are in G.P. Ques2) Show that the sum of square of three consecutive odd no's increase by 1 is di ...

find out a four digit number M such that N=4xM and N has the following properties : i) it is also a four digit no. ii) the digits of N are in reverse order of those in M. ...

One of the conditions for asolution to behave idealy is that the interactions between the solute and the solvent particles should be the same as those between solute-solute and solvent-solvent particles.Keeping this fact in m ...

This is not my doubt. This is for others to try out: try both [1] *Image* ...

Q1. is [dv/dt]=[dv]/dt Q2. is it possible to have [dv/dt]=0 but [dv]/dt ≠0 give reasons for your answer [] denotes modulas of the function ...

how to solve sin-1x≥0??????? ...

Here are a few good probs.Pls solve them. 1)What is the solution of the inequality |x+3|>|2x-1| 2)Find the solution of |x2+3x|+x2-2 ≥ 0 3)Find the solution of 2x+2|x| ≥ 2√2 ...

which of the following quantities do not change when a resistor connected to a battery is heated due to current ? (a)drift speed (b)resistivity (c)resistance (d)number of free electrons ...

lim x→2 ( x-2 + x - 2 )/ x2-4 ...

a uniform chain of mass M and length L is held vertically in such a way that ts lower end just touches the horizontal floor. The chain is released from rest in this postion. Any portion that strikes the floor comes to rest. A ...

Define a "valid n-bit binary word" as a n digit long sequence of 0's or 1's in which no two or more consecutive 1's are present. For example, for n = 3, we see that of all the 3-bit binary words possible: 000, 001, 010, 011, ...

pls solve 1)Σtan2(rΠ/16)=S and r varies from 1 to 7 wat is S? 2)let f(x+y)=f(x)2+f(y) for all x,y belongs R then find f(x) 3)If two distinct circles x2+y2-2ax+c=0 and x2+y2-2bx+c=0 and a2>c b2>c>0 cut equal interce ...

500 ml of 0.2 M aqueous solution of acetic acid is mixed with 500 mL of 0.2 M HCl at 25 C. If 6 g of NaOH is added to the above solution,determine the final pH.(Assume no change in volume on mixing) Ka(CH3COOH) = 1.75 x 10-5 ...

NCERT: Intext question A compound forms hcp structure. What is the total number of voids in 0.5 mol of it? How many of these are tetrahedral voids? ...

*Image* a projectile is fired from the edge of a 150 m cliff with a horizontal velocity of 180m/s at angle of 30° with the horizontal , negelcting air resistane ans the followin 1.the horizontal distance from the gun to the ...

Q) (A)( yellow coloured solution ) changes to light green coloured solution (B), on passing H2S gas. (A) and(B) both give white precipitate with BaCl2 solution, insoluble in conc. HCl . (A) gives blue coloured precipitate (C) ...

does catalyst increases frequency of colliding molecules ...

*Image* what the difference ...

may i know when i would get assignments of physics as well as chemistry? ...

The density of liquid varies as ρ=ρo(4- 3h/ho). Here ho and ρo are constants and h is measured from base of container.A solid block of small dimensions whose density is 5ρo/2 and mass is m is released from bottom of tank. ...

If T_n = \frac{4^n n^2}{(n+1)(n+2)} Find Sn where S_n = \sum_{i=1}^n T_n ...

A system consists of 6 parallel identical plates placed un-equal distance apart. A charge q has given in plate no.3 . The charge developed in outer surface of plate 1 & 6 is ?? ...

A person A at x=0 is shooting bullets along positive x axis at a speed of 100m/s at the rate of 100 bullets per second. A cart is moving along the x axis with a speed of 4m/s. Find the number of stones gathered by the person ...

please give the mistake in the following solution: I=∫ (ax+b)sec x tan x dx/4+tan2x dx (a,b>0) and lower limit 0 and upper limit π splitting the numerator, ∫ ax sec x tan x dx/3+sec2x = ∫ a(π-x)sec x tan x/3+sec2x ...

ysin2xdx=dy(1-k(y)^(1/2)cosx) here k is a known constant. ...

WHICH OF THE FOLLOWING HAS GOT HIGHEST DIPOLE MOMENT (1) CH2Cl2 (2) CHCl3 (3) CCl4 FIND OUT THE ANSWER WITH REASON ...

if a and b are two integers such that 7 divides a2+b2, prove that 49 divides a2+b2. HINT: try using euclid's division algorithm i must admit if presently i were in class ix-x, i would not even know how to approach it! ...

Prove the cos x2 is not periodic. ...