List of practice Questions

The least random state of $H_2O$ system is

The least value for the common base transistor amplifier is in the case of

The largest term common to the sequences $1, 11, 21, 31,...$to $100$ terms and $31, 36, 41, 46,.....$ to $100 $ terms is

The last element of the third transition series is

The largest invertebrate Architeuthis dux is a

The largest reservoir of nitrogen on Earth is

The largest flower found is known as

The large hand of a clock is $42 \,cm$ long. How much distance does its extremity move in $20$ minutes?

The largest bond angle is in

The knee voltage of a p-n junction diode is 0.8 V and the with of the depletion layer is 2 $\mu m$, the electric field in the depletion layer is

The Kolbe's electrolysis proceeds via

The kingdom protista was established by

The kinetic theory of gases gives the formula $PV = \frac{1}{3} Nm\bar{v}^{2}$ for the pressure P exerted by a gas enclosed in a volume $V$. The term $Nm$ represents

The Kingdom Protista forms a link with Kingdom

The kinetic energy of a particle executing SHM is maximum, when its displacement is equal to

The kind of coelom represented in the diagram given below is characteristic of:

The ionization enthalpy of $He^{+} ion is 19.60 \times10^{-18} J atom^{-1}.$ The ionization enthalpy of $Li^{2+}$ ion will be

The IUPAC name of $[Ni(CO)_4]$ is

The ionic radius of $Cl^{-}$ ion is $1.81\, \mathring A $. The interionic distances of $NaCl$ and $NaF$ are $2.79 \, \mathring A $ and $2.31\, \mathring A $ respectively. The ionic radius of $F^{-}$ ion will be

The ionisation constant of acetic acid is $1.8 \times 10^{-5}$. At what concentration will it be dissociated to 2% ?

The ionisation constant of an acid, $K_a$ is the measure of strength of an acid. The $K_a$ values of acetic acid, hypochlorous acid and formic acid are $1.74 \times 10^{-5}$, $3.0 \times 10^{-8}$ and $1.8 \times 10^{-4}$ respectively. Which of the following orders of $pH$ of $0.1\, mol \,dm^{-3}$ solutions of these acids is correct?

The inverse square law in electrostatics is$\left|\vec{F}\right| = \frac{e^{2}}{\left(4\pi\varepsilon_{0}\right)\cdot r^{2}}$ for the force between an electron and a proton. The $(\frac{1}{r})$ dependence of $|\vec{F}|$ can be understood in quantum theory as being due to the fact that the ??article? $\left|\vec{F}\right| = \frac{e^{2}}{\left(4\pi\varepsilon_{0}\right)r^{2}}\left[\frac{1}{r^{2}} + \frac{\lambda}{r}\right] \cdot exp \left(-\lambda r\right)$ where $\lambda = m_pc/?$ and $?= \frac{h}{2\pi}$ The change in the ground state energy $(eV)$ of a $H$-atom if $m_p$ were $10^{-6}$ times the mass of an electron. ($r_B =$ Bohr?? radius)

The ionic conductance of following cations in a given conc. is in the order

The intermediate solutions of constraints must be checked by substituting them back into

The internal energy of an ideal gas is :