List of practice Questions

In the formation of $ \pi - $ bond, the atomic orbitals overlap in such a way that
A liquid which decomposes at its boiling point can be purified by
Find wrong statement
What is the oxidation number of vanadium in $R b_{4} N a\left[H V_{10} O_{28}\right] ?$
$ {{(1+i)}^{3}}+{{(1-i)}^{3}} $
Which of the following has higher bond angle?
First ionisation enthalpy of ${Al}$ is lower than that of ${Mg}$. This is because
Which one of the following kinds of animals are triploblastic?
Vasa efferentia are muscular tubes, each of which connects
The ratio of the energy required to raise a satellite upto a height $h$ above the earth of radius $R$ to that the kinetic energy of the satellite into that orbit is
The power of biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is
The pH value of 0.01 N NaOH solution is
The number of atoms in $100\,g$ of an $fcc$ crystal with density, $d = {10\, g/cm^3}$ and cell edge equal to $100\,pm$, is equal to
The nature of bonding between adjacent atoms in graphite is
The increasing order of stability of the following radicals is
The correct order of acidic strength of (i) Alcohol (ii) Acetic acid (iii) 2,4,6-Trinitrophenol (iv) Phenol is
The dimensional formula for electric flux is
The coordination number of ${Pt}$ and ${Fe}$ in ${[PtCl_6] }$ and ${[Fe(NH3)4] }$ repectively are
Sodium in sodium vapour lamp produces
Kohlrausch's law states that at
In cockroach, the ootheca is formed by the secretion of
In an isothermal process, there is
If a planet has twice the mass of earth and three times the radius $(R)$ of earth, then the escape velocity of the planet is ($\upsilon_e$ = escape velocity of earth)
If a fresh water protozoan is placed in marine water, then what change will be observed in its contractile vacuole?
G-6-P-D deficiency inheritance is an example of ______ inheritance.