List of practice Questions

The force of repulsion between two identical positive charges when kept with a separation 'r' in air is 'F' Half the gap between the two charges is filled by a dielectric slab of dielectric constant = 4. Then the new force of repulsion between those two charges becomes
Which of the following arrangements shows the schematic alignment of magnetic moments of antiferromagnetic substance ?
Which of the following compounds is formed when a mixture of $K_2Cr_2O_7$ and NaCl is heated with cone. $H_2SO_4$ ?
Adam's apple is also called _____
In the circuit shown, inputs $A$ and $B$ are in states ?$1$? and ?$0$? respectively. What is the possible stable state of the outputs ?$X$? and ?$Y$? ?
During replication of retrovirus
Among the following, the branched chain polymer is
A 100 W bulb is connected to an AC source of 220 V, 50 Hz. Then the current flowing through the bulb is
A charge q is accelerated through a potential difference V. It is then passed normally through a uniform magnetic field, where it moves in a circle of radius r. The potential difference required to move it in a circle of radius 2r is
The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are
To which group and period does the element belong if the electronic configuration of an element in its $-2$ oxidation state is $1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}$ ?
If $\sin^{-1} \,x + \cos^{-1} \,y = \frac{2 \pi}{5}$ , then $\cos^{-1} \,x + \sin^{-1}\, y$ is
The number of ways in which 5 girls and 3 boys can be seated in a row so the no two boys are together is
The value of $\displaystyle\lim_{x\to0} \frac{\left|x\right|}{x} $ is
Digestion of both starch and proteins is carried out by enzymes of
Match the following bacteria of List I with their commercial products of List II: Select the code for the correct answer from the options given below :
Identify the odd one from the following :
Germplasm collection refers to

Let A be a square matrix of order $3 \times 3$, then $|5A| =$

The interaction between "Cuckoo and Crow" is an example for
Which of the following statements is not true for halogens?
The correct sequence of taxonomic hierarchy is
Ciliates differ from all other protozoans in
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their
Which of the following oxides is most acidic in nature ?