List of practice Questions

In the decarboxylation of carboxylic acid the reagent used is

In Newton ring experiment, monochromatic light is replaced by white light. Then

In a spectrometer experiment, " As wavelength of a spectral line increases, deviation also increases". This is true

In a region a stationary charge does not experience a force. It is certain that in this region

If $[x]$ denotes the greatest integer function, then $\int\limits_{1}^{4} \left(\left[x\right] -1\right)\left(\left[x\right] -2\right)\left(\left[x\right] -3\right)\left(\left[x\right] -4\right)dx = $

If $\log_2 \: \sin x - \log_2 \cos x -\log_2(1 - \tan^2x) = - 1$, then

If $u = f(x^2) , v = g(x^3) , f'(x) = \sin x $ and $g'(x) = \cos x,$ then $ \frac{du}{dv} = $

If $x= 3 \cos t - 2 \cos^{3} t , y = 3\sin t - 2 \sin^{3} t ,$ then $ \frac{d^{2}y}{dx^{2}} t = \frac{\pi}{6}$ is

If $\tan^{-1} \left(\frac{x}{y}\right) + \log \sqrt{x^{2} +y^{2}} = 0 $ , then $\frac{dx}{dy} = $

Let $f\left(x\right) = \frac{\log\left(1+ex\right)-\log\left(1-x\right)}{x} , x\ne0 $ . Then $f$ is continuous at $x = 0$ if $f(0)$ =

Identify the placental hormone cited below

Heat of neutralization of any strong acid and strong base is always constant and $\Delta H= -57.3 \, kJ$. This is because

Helium molecule is monoatomic because

For $O_2$ molecule, molecular orbitals having lowest energy is

Food plant of Antheraea assama is

Field capacity of the soil includes

Fine structure of spectral lines is accounted in Sommerfeld atom model by considering

For yielding one molecule of glucose the Calvin cycle turns

Larger subunit of the ribosome helps in producing

Closing layers of lenticels may show the deposition of

Egg of frog is