List of practice Questions

In a reaction $ 2A+B\to A_{2}B, $ the reactant $B$ will disappear at
Which one of the following is a secondary amine?
The equation of the line parallel to x-axis and tangent to the curve $ y=\frac{1}{{{x}^{2}}+2x+5} $ is
In which of the following compounds, carbon exhibits a valency of $4$ but oxidation state $-2$ ?
In zinc blende structure, the coordination number of the cation is
The alloy of copper that contains zinc is
Sun is visible a little before the actual sunrise and until a little after the actual sunset. This is due to
The van't Hoff factor $i$ for a dilute aqueous solution of sucrose is
When a solution containing non-volatile solute is diluted with water
Which of the following compound is chiral?
Which one of the following amines cannot be prepared by Gabriel's synthesis?
If the equivalent capacitance between $P$ and $Q$ of the combination of the capacitors shown in figure below is $ 30\,\mu \,F $ , the capacitor $C$ is
Which of the following is a correct name according to IUPAC rules?
The particle that cannot be accelerated by a cyclotron is
Which of the following is the largest is size?
The $S.I$ unit of activity of a radioactive sample is
Position-time graph for motion with zero acceleration is
Phenol on heating with alcoholic $KOH$ and chloroform - undergoes
The correct order of reducing character of alkali metals is
Freundlich adsorption isotherm equation is
The best coagulant for the precipitation of $Fe ( OH )_{3}$ is
A car moving with a speed of $50 \,km\, h^{-1}$ can be stopped by applying brakes after moving atleast $6 \,m$. If the same car is moving at a speed of $100 \,km\, h^{-1}$ the minimum stopping distance is
Zeigler-Natta catalyst is used to prepare
The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be
The value of $ \cos \frac{\pi }{7}.\,\cos \frac{2\pi }{7}.\,\cos \frac{4\pi }{7} $ is equal to