List of practice Questions

The oxidation numbers of the sulphur atoms in peroxomonosulphuric acid $ (H_{2}SO_{5}) $ and peroxodisulphuric acid $ (H_{2}S_{2}O_{8}) $ are respectively

Which one of the following is \(d\) block element?

The composition of bell metal is
Which of the following has maximum laevorotatory nature ?
Morphine which is used as an analgesic is obtained from
The temperature of a radiating body increases by $30\%$. Then the increase in the amount of radiation is
The range of the function $ f(x)\frac{{{x}^{2}}-x+1}{{{x}^{2}}+x+1} $ where $ x\in R, $ is
The working principle of rocket propulsion is conservation of
The nuclear force
The relation connecting magnetic susceptibility $ \chi_{m} $ and relative permeability $ \mu _{r} $ is
The average power dissipated in a pure capacitance $AC$ circuit is
The number of molecules in $18 \,mg$ of water in terms of Avogadro number $N$ is
The set of quantum numbers $ n=4,l=0 $ and $ s=+\frac{1}{2} $ correspond to the most loosely bound, ground state electron of which one of the following atoms?
In a transistor, the base is
Which one of the following is aromatic?
The solubility product of a sparingly soluble metal hydroxide $M ( OH )_{2}$ at $298 \,K$ is $5 \times 10^{-16} mol ^{3} d m^{-9}$. The $pH$ value of its aqueous and saturated solution is

In AC circuit Ohm's law is applicable for
Parkinson's disease is linked to abnormalities in the levels of dopamine in the body. The structure of dopamine is
Aluminium reacts with NaOH and forms compound 'X'. If the coordination number of aluminium in 'X' is 6, the correct formula of X is
If the equation $ (a+1){{x}^{2}}-(a+2)x+(a+3)=0 $ has roots equal in magnitude but opposite in signs, then the roots of the equation are
The bacteriostatic antibiotic among the following is
The shortest wavelength of $X$-rays coming from an $X$-ray tube depends on the
The total number of acyclic structural and optical isomers possible for a hydrocarbon of molecular formula $ C_{7}H_{16} $ is
In Young's double slit experiment, the fringe width with light of wavelength $6000 \,?$ is $3 \,mm$. The fringe width, when the wavelength of light is changed to $4000 \,?$ is
The correct vector relation between linear velocity $ \vec{v} $ and angular velocity $ \vec{\omega } $ in rigid body dynamics is ( where $ \vec{r} $ is the position vector)