List of practice Questions

The rate constant for a first order reaction is $60 \,s^{-1}$. How much time it will take to reduce the concentration of the reactant to $1 / 10^\text{ th}$ of its initial value?
The equivalent weight of $H _{3} PO _{2}$, when it disproportionates into $PH _{3}$ and $H _{3} PO _{3}$ is
Oxidation state of $Fe$ in $Fe ( CO )_{5}$ is zero. $EAN$ of $Fe$ in this complex is $36$.
Which of the following is the smallest unit ?
The slopes of the tangent and normal at $(0, 1)$ for the curve $y = \sin x + e^x$ are respectively
Magnetic field at the centre of a circular coil of radius $R$ due to current $I$ flowing through it is $B$. The magnetic field at a point along the axis at distance $R$ from the centre is........
$CO+ H_2\xrightarrow[X(catalyst)]{300^\circ C/300\, atm} CH_3OH$ The catalyst $X$ is
Ionisation energy of $He^+$ is $19.6 \times 10^{-18}\, J\, atom^{-1}$. The energy of the first stationary state $(n = 1)$ of $Li^{2+}$ is
To verify Ohm's law, a student is provided with a test resistor $R_T$, a high resistance $R_1$, a small resistance $R_2$, two identical galvanometers $G_1$ and $G_2$, and a variable voltage source V. The correct circuit to carry out the experiment is
The potential of a hydrogen electrode at $pH = 10$ is
The disease caused by Trypanosoma gambiense is
Which of the following is an outer orbital complex ?
An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of $2 \,m/s$. The mass per unit length of water in the pipe is $100 \,kg/m$. What is the power of the engine?
The complex number $ z = \begin{vmatrix}2&3+i&-3\\ 3-i&0&-1+i\\ -3&-1-i&4\end{vmatrix} $ is equal to
Widal test is used for the diagnosis of

Which of the following is known as oil of vitriol ?

The wall of internal organs such as blood vessels, stomach and intestine contain this type of muscle tissue
Immunoglobulins are proteins that show...... structure.
The function of copper-\(T\) is to prevent
Red cell count is carried out by
Typhoid fever is caused by a species of
Grey biotechnology is referred to
The strongest base among the following is
Which of the following structures represents neoprene polymer?
Which are of the following has epiphytic features and aerial and flattened photosynthetic roots, without formal organisation of stem and leaves?