List of practice Questions

Carbylamine reaction is given by

German silver is

Fog is an example of

Atomic no. $81$ is placed in

Electronic configuration of $Na$ is

What is the value of $\tan^{-1} \left(\frac{m}{n}\right) - \tan^{-1} \left(\frac{m-n}{m+n}\right) ? $

The number of positive integral solutions of the equation $\tan^{-1} x + \cot^{-1} y = \tan^{-1} 3 , $ is

The value of $\cos \left(\frac{1}{2} \cos^{-1} \frac{1}{8}\right) $ is equal to

In a $\Delta ABC$, if $A = tan^{-1}\, 2$ and $B = tan^{ -1}\, 3$ , then $C =$

$sin^{-1}\left(\frac{1}{\sqrt{e}}\right)> tan^{-1}\left(\frac{1}{\sqrt{\pi}}\right) $ $sin^{-1}\,x>tan^{-1}\,y$ for $x>y, \forall \,x, y \,\in\left(0, 1\right)$

The value of $cot^{-1}\left\{\frac{\sqrt{1-sin\,x}+\sqrt{1+sin\,x}}{\sqrt{1-sin\,x}-\sqrt{1+sin\,x}}\right\}\left(0 < x < \frac{\pi}{2}\right)$ is

The earliest man evolved around

$2^{\frac{1}{4}}, 4^{\frac{1}{8}}, 8^{\frac{1}{16}}, 16^{\frac{1}{32}}............ $ is equal to

Flying Phalanger and Flying squirrel are examples of

Common ancestor of humans and apes was

The earliest man-like primate was

Tuang Baby or African Ape-Man belonged to

Change in allele number and frequency in gene pool due to small size of population is

Selection favouring one extreme of a trait is called

Persistence of heterozygote in the population due to its superiority is called

Speciation that occurs at the ends of a large sized population is

$175$ calorie of heat is required to raise the temperature of $5$ mole of an ideal gas at constant pressure from $30^\circ\,C$ to $35^\circ\,C$. The amount of heat required to raise temperature of same gas from $30^\circ\,C$ to $35^\circ\,C$ constant volume will be

Replica plating experiment to demonstrate occurrence of preadaptive mutations was performed by

Capacitance of a spherical conductor of radius $R$ is proportional to

A resistor, capacitor and an inductor are connected in series and are in resonance. What is the phase difference between the supplied voltage and current ?