List of practice Questions

The current passing through the ideal ammeter in the circuit given below is

The amino acid which is not optically active is

Ellingham diagram represents a graph of

Decomposition of benzene diozonium chloride by using $Cu_2Cl_2/HCl$ to form chlorobenzene is

In ABO blood groups, how many phenotypes are found ?

The idea of Natural Selection as the fundamental process of evolutionary changes was reached

A ray of light is travelling from glass to air. (Refractive index of glass = $1.5$) The angle of incidence is $50^\circ$. The deviation of the ray is

A radioactive substance contains $10,000$ nuclei and its half life period is $20$ days. The number of nuclei present at the end of $10$ days is

Benzene reacts with chlorine in sunlight to give a final product

Which one is correct ?

A ray of light is incident normally on one face of a right angled isosceles prism. It then grazes the hypotenuse. The refractive index of the material of the prism is

Synthesis of food in C4 pathway occurs in chloroplasts of

Which one of the following is a fat-soluble vitamin and its related deficiency disease?

A wheel has angular acceleration of $3.0 \,rad/sec^{-2}$ and an initial angular speed of $2.00\, rad\,s^{-1}$. In a time of $2\, s$ it has rotated through an angle (in radian) of

A uniform rod $A B$ of length $\ell$ and mass $m$ is free to rotate about point $A .$ The rod is released from rest in the horizontal position. Given that the moment of inertia of the rod about $A$ is $\frac{m \ell^{2}}{3}$, the initial angular acceleration of the rod will be:-

$\int\limits_{0}^{8}| x -5| d x$ is equal to

If $B_{H}=\frac{1}{\sqrt{3}} B_{V}$, find angle of dip. (where symbols have their usual meanings)

If the normal to the curve $y = f(x)$ at $(3,4)$ makes an angle $\frac{3 \pi}{4}$ with the positive x-axis, then $f'(3)$ is equal to

The equation of a directrix of the ellipse $\frac{x^2}{16} + \frac{y^2}{25} = 1 $ is

what is the Q-value of the reaction $p+{ }^{7} Li \rightarrow{ }^{4} He +{ }^{4} He$ The atomic masses of ${ }^{1} H ,{ }^{4} He$ and ${ }^{7} Li$ are $1.007825\, u , 4.002603\,u$ and $7.016004\, u$ respectively

f(x) is cubic polynomial with f(2) = 18 and f(1) = -1. Also f(x) has local maxima at x = -1 and f '(x) has local minima at x = 0, then

Name the complex Ni(\(PF_6\))\(_2\):

If \( x = -9 \) is a root of \( \begin{pmatrix} 2 & 3 \\ 7 & 6 \end{pmatrix} \times \begin{pmatrix} x \end{pmatrix} = 0 \), then other two roots are:

Let \( A = \begin{pmatrix} 1 & 3 & 2 \\ 4 & 2 & 5 \\ 7 & -t & -6 \end{pmatrix} \), then the values of \( t \) for which inverse of \( A \) does not exist are:

If \( f'(x) = \frac{x}{\sqrt{1 + x^2}} \) and \( f(0) = 0 \), then \( f(x) = \):