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1. The two electrodes of Pt fitted in a conductance cell are 1.5 cm apart while the cross - sectional area of each electrode is 0.75 cm2. What is cell constant in cm^-1? a) 0.2 b) 0.5 c) 2.0 d) 1.125 2. The rate of second ord ...

1.Holoform test is given by a) Ethanal b) Propanone c) Butanone d) Propan-2-ol 2. Which of the following are diamagnetic? a)[Ni(H2O)6]+2 b)[Ni(CN)4]-2 c) [Zn (NH3)4]+2 d) [Co(NH3)6]+3 3. Primary, Secondary and Tertiary amine ...

1..THE POSITIVE REAL FUNCTION SATISFIES F(X)/F(Y) ≤7(X-Y)2 FOR X , Y BELONG TO ITS DOMAIN ,F(3/2)= Π/4 THEN 1.F(X)= X +X3 2.F'(7)=0 3.F(X)=∫sin-1 t dt +∫ cois-1 t dt (in 3--limit for sin-1 t is from 0 to sin2x while fo ...

PARAGRAPH–Riemer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol,ortho to the hydroxyl group. This reaction involves electrophilic aromatic substitution. This is a general method for the synt ...

is the 180 - 190 appx score in fiitjee test XI (yesterdays one) ............to clear jee appx.....and if some of u guys cud tell ur marks expected? ...

Two charges +q1 and and -q2 are placed at A and B respectively.A line of force emanate from +q1 at an angle α with AB. At what angle it will terminate at -q2? *Image* (a)sin-1[√(q1/q2)sin α/2] (b)2sin-1[√(q1/q2)sin α/2 ...

Pragraph : A hydrogen octum in third excited state makes a transtion to first excited state and emit photon. This emitted photon is absorbed by He+ ion which was already in seventh excited state. After absorption of photon He ...

A SOLID BODY STARTS ROTATING ABOUT A STATIONARY AXIS WITH AN ANGULAR ACC. 2*10-2T HERE,T ISD IN SECONDS.HOW SOON AFTER BEGINNING OF ROTATION WILL TOTAL ACC. VECTOR MAKE AN ANGLE OF 60° WITH VELOCIRTYT VECTOR? PLZ SOLVE COMPL ...

multi ans correct: for a particular reaction,values of ∂H and ∂S are both +ve.which of the foll statements are true about it? a)reaction is spontaneous at any temp b)reaction is not spontaneous at any temp c)reaction is s ...

Q) When a methyl as well as phenyl grps are attached to same carbon atom, which shift takes place - 1,2-methyl or 1,2-phenyl shift and why? ...

If a body with cavities floats half submerged in liquid of density 900 kg/m3. Then choose the incorrect statement. The average density of body is 450 kg/m^3 the density of material of the body may be greater than 900 kg/m^3 t ...

There are three sets of objects. One group contains n elements of one kind Other contains n elements of another kind Last grp contains n different elements All 3n elements are mixed together. Find the number of ways in which ...

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1..electric lines of force can never be closed curves 2..electric line of force are path followed by a unit positive charge in an elecric field ...

Statement 1-the electric field inside a conducting shell is 0. Statement 2-no electric line of force can pass through 2 pts having same potential. A)1 is true,2 is true,2 is correct explanation of 1. B)1 is true,2 is true,2 i ...

Q1: *Image* Q2: *Image* ...

find : \ \int_{0}^{\pi}\frac{\cos nx}{2-\cos x}dx\ (n = 0,\ 1,\ 2,\ \cdots) ...

can solvay's process be used to prepare potassium carbonate? ...

Sulphurous acid acts as reducing as wel las oxidising agent..give reasons ...

A charge Q is placed at a distance of r from the center of a neutral solid spherical conductor as shown. Find the potential at B due to induced charges present on surface of solid sphere [A is centre of the sphere] *Image* ...

*Image* QUESTION 2 >WHICH OF THE COMPOUND HAVE HIGHEST DIPOLE MOMENT? ...

How is entropy a state function? Explain ...

pls give structure of all isomers of the complex [ Co (NH3)5 (NO2) ] (NO3) ...

Ques 1) Water is brought under a pressure of 1 atm. When an electric current of 0.5 A from a 12 V supply is passed for 300 sec through a resistance in thermal contact with it, it is found that 0.789 g of water is vaporized. C ...

1) A flat square sheet of charge of side 50 cm carries a uniform surface charge density. An electron 0.5 cm from a point near the centre of the sheet experiences a force of 1.8 X 10 - 12 N, directed away from the sheet. Deter ...

Why is Chalcocite roasted and not calcined in the recovery of copper ? ...

(1) find all Integral value of x for which the expression x^{2}+7x+13 is a perfect square. i have got only one solution x= - 4 is there is any other Integral value of x which satisfy this expression? ...

If a(70a - 12b + 2c)> 0 and the quadratic equation ax^2 + bx + c = 0 has real roots alpha and beta, then which of the following statement is always false? alpha< beta < -7 alpha < beta<= - 8 alpha > beta> ...

If the potential difference decreases by a factor of n after every ladder then the ratio of R1/R2 is *Image* ...