List of practice Questions

Of the following, the metals that cannot be obtained by electrolysis of the aqueous solution of their salts are
Male gametophyte of angiosperms/monocots is
In $P_4O_6$, the number of oxygen atoms bonded to each phosphorus atom is
Electrolysis of aqueous solution of $CH_3COOK$ gives
Washing soda has formula
Major aerosol pollutant in jet plane emission is
Magnification of compound microscope is not connected with
Kjeldahl's method is used in the estimation of
Hammerling's experiments of Acetabularia involved exchanging
Deforestation will decrease
Compared with the alkaline earth metals, the alkali metals exhibit:
The first carbon dioxide acceptor in C plants is
When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water, the sodium ions are exchanged with
Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives
The rate of diffusion of methane is twice that of X. The molecular mass of X is
Amongst the following, the most basic compound is
Aryl halides are less reactive towards nucleophilic substitution reaction as compared to alkyl halide due to
A wave is represented by the equation ; $\, \, \, \, \, y=A \sin (10 \pi x+15 \pi l+ \pi /3) $ where, x is in metre and t is in second. The expression represents
A particle of mass m is projected with a velocity v making an angle of 45$^{\circ}$ with the horizontal. The magnitude of the angular momentum of the projectile about the point of projection when the particle is at its maximum height h is
Amongst the elements with following electronic configurations, which one may have the highest ionisation energy?
A solution of potassium ferrocyanide would contain.....ions
A planet is moving in an elliptical orbit around the sun. If T, V, E and L stand respectively for its kinetic energy, gravitational potential energy, total energy and magnitude of angular momentum about the centre of force, which of the following is correct ?
A bivalent consists of:
A chordate character is
Fish which can be used in biological control of mosquitoes/Larvicidal fish is