List of practice Questions

The charge on $1$ gram ions of $Al^{3+}$ is

The charge on an electron was calculated by

The characters which appear in the first filial generation are called

The characteristic(s) common to urea, uric acid and ammonia is/are (i) They are nitrogenous wastes (ii) They all need very large amount of water for excretion (iii) They are all equally toxic (iv) They are produced in the kidneys

The characteristic's of light which are changed during modulation is/are

The characteristic property of organization is present

The cell wall is composed of two thin overlapping shells which fit together like a soap case in

The cells called '$HIV$ factory' is

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