List of practice Questions

How benzene is converted into n - propyl benzene
From the top of a lighthouse, the angles of depression of two stations on the oposite sides of it at a distance d apart are $\alpha$ and $\beta$. The height of the lighthouse is
Ferric chloride is used to stop bleeding in cuts because
$CH_3MgI$ will give methane with
CDRI (Central Drug Research Institute ) is situated at:
Canada Balsam is obtained from the plant :
An infinite number of capacitors $2.0 \, \mu F, 4.0 \, \mu F , 8.0 \, \mu F, 16.0 \, \mu F$, ............ are connected in series. The equivalent capacitance of the system is
An object of mass $10\, kg$ falls from rest through a vertical distance of $10\,m$ and acquires a velocity of $10\,m/s$ .The work done by the push of air on the object is $(g = 10 \, m/s^2)$
An ellipse has uniform linear positive charge density in upper half (total upper half part charge +Q) and uniform linear negative charge density in lower half (total lower half part charge -Q) as shown in figure. Here semi minor axis b < a semi major axis. Select the correct statement about the magnitude of electric dipole moment P of the ellipse
Which of the following group of animals is guanotelic ?
Which of the following is a tricarboxylic acid?
White phosphorus $P_4$ has the following characteristics:
Which of the following carboxylic acids is most reactive towards esterification?
Which among the group-15 elements does NOT exists as tetra atomic molecule?
What is the catalyst used for oxidation of $\ce{SO_2}$ to $\ce{SO_3}$ in lead chamber process for manufacture of sulphuric acid?
The number of unpaired electrons in $Ni$ (atomic number $= 28)$ are
The immunity developed by a child after attack of measles is ______ immunity
In the given diagram of Malpighian body, blood is filtered from part labelled _______
In the following diagram of T.S. of Artery, the region marked 'X' is ________
$Cl_2O_7 $ is the anhydride of
Which of the following is an example of thermosetting polymers?
Which one of the following set of metals deposits an anode mud during the process of electrolytic refining of copper?
Two infinitely long straight wires lie in the $xy$-plane along the lines $x = \pm R$. The wire located at $x = + R$ carries a constant current $I_1$ and the wire located at $x = - R $ carries a constant current $I_2$. A circular loop of radius
Two different coils have self-inductance $ L_{1} = 9 \,mH $ and $ L_{2} = 3\, mH $ . At a certain instant, the current in the two coils is increasing at the same rate and the power supplied to the coils is also the same. The ratio of the energy stored in the two coils $ (U_{1} / U_{2}) $ at that instant is
The nearest star to our solar system is $ 4.3 $ light years away. The distance of this star in Parsec is (Mean distance between the earth and the sun $ = 1.5 \times 10^{11}\, m $ and one light year $ = 9.46 \times 10^{15} \, m $ )