List of practice Questions

The centre of mass of a non uniform rod of length L whose mass per unit length $\lambda=\frac{Kx^2}{L},$ Where k is a constant and x is the distance from one end is :
The cell constant is the product of resistance and
The cell reaction of the galvanic cell :$Cu (r)|Cu^2+(aq) ||Hg^{2+}(aq) Hg | (l)$ is
The cause of the fractional atomic weight of elements is
The cause of Brownian movement is
The catalytic activity of transition metals and their compounds is ascribed mainly to
The catenation tendency of C, Si and Ge is in the order Ge < Si < C. The bond energies (in kJ mol$^{-1}$) of C - C, Si - Si and Ge -Ge bonds are respectively;
The cartesian equation of the line $l$ when it passes through the point $(x_1, y_1, z_1)$ and parallel to the vector $\vec{b}=a\hat{i}+b\hat{j}+c\hat{k}$, is
The carbide of which of the following metals on hydrolysis gives allylene or propyne?
The carbon atom of the carbonyl group is
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
The capacity of a storage cell is expressed in :
The capacitors of capacitance $4\,\mu F$ and $6\,\mu F$ are connected in series. A potential difference of $500\, volt$ is applied to the outer plates of capacitor system. Then the charge on each capacitor is equal to
The capacitance of a parallel plate capacitor is $5\,\mu F$. When a glass slab is placed between the plates of the capacitor, its potential difference reduces to $1/8$ of the original value. The thickness of the slab is equal to the separation between the plates. The value of the dielectric constant of glass is
The capacitance of a conductor in vacuum is $10\,F$. If it is put in a medium of relative permittivity $5$, the capacitance will be :
The Bronsted acid which gives the weakest conjugate base is
The Bt toxin is not toxic to human beings because
The breeding carried out between animals of different breeds is called
The breakdown in a reverse biased $p-n$ junction diode is more likely to occur due to
The breaking force for a wire of diameter D of a material is F. The breaking force for a wire of the same material of radius D is
The branch of optics dealing with the formation of images using the concept of straight line propagation of light is called:
The bond energy of an O - H bond is 109 k cal/mole. When a mole of water is formed then
The bond angle in $PH_3$ is close to
The bond between phosphate and hydroxyl group of sugar in nucleic acid is
The bond angle in $H_2S$ is