List of practice Questions

Core zone, buffer zone and manipulation zone are found in
Contraceptive oral pills help in birth control by
Epimysium, perimysium and endomysium are found in
Coconut water contains
Cockroach mainly excretes
Cell wall of bacteria and blue green algae is composed of
Tube feet are locomotory organ in
Calculate the wavelength (in nanometer) associated with a proton moving at $1.0 \times 10^3ms^{-1}$ (Mass of proton $= 1.67 \times 10^{-27}\, kg$ and $h = 6.63 \times 10^{-34}\, Js$ ) :
Bipolar neurons occur in
Best material for the study of mitosis in laboratory : -
Bark refers to
Axis vertebra is identified by
Transformers are used only in alternating current source not in direct current. Only a.c. can be stepped up or down by means of transformers.
The $S-S-S$ bond angle in $S_8$ molecule is $105^{\circ}$. $S_8$ has a V-shape.
The honey bee queen copulates only once in life. It can lay both fertilised and unfertilised eggs.
The dimensional formula for product of resistance and conductance is same as for dielectric constant. Both have dimensions of time constant.
Protandry and protogyny ensures cross fertilization. Cross fertilization introduces variation in progeny.
Nucleus is the controlling centre of a cell. Pores in the nuclear envelop regulate the flow of materials in and out of the nucleus.
Millon?? test is a test for identification of proteins. Millon?? reagent is a solution of mercurous nitrate and mercuric nitrate in nitric acid containing little nitrous acid.
Impulsive force is large and acts for a short time. Finite change in momentum should be produced by the force.
Glycolysis is the first step of respiration in which glucose completely breaks into CO and HO. In this process, there is net gain of twenty four molecules of ATP.
Bleaching powder is a mixed salt. In the presence of $COCl _{2}$, bleaching powder decomposes to give $CaCl _{2}$ and $O _{2}$.
Among the alkali metals, lithium salts exhibit the least electrical conductance in aqueous solutions. Smaller the radius of the hydrated cation, lower is the electrical conductance in aqueous solutions.
A total reflecting prism is used to erect the inverted image without deviation. Rays of light incident parallel to base of prism emerge out as parallel rays.
A proton and an alpha particle having the same kinetic energy are moving in circular paths in a uniform magnetic field. The radii of their circular pahts will be equal. Any two charged particles having equal kinetic energies and entering a region of uniform magnetic field $\vec{ B }$ in a direction perpendicular to $\vec{ B }$, will describe circular trajectories of equal radii.