List of practice Questions

Sexual mode of reproduction in Protozoa

Select the incorrect statement.

Sea water is converted into fresh water based on the phenomenon of

Satellite DNA is useful tool in

'Ruminate endosperm' is found in

Root development is promoted by

Rocket propulsion is associated with

Ringworm in humans is caused by

Restriction endonucleases are enzymes which

Renal calculi are formed due to

Pure benzene freezes at $5.3^{\circ} C$. A solution of $0.223 \,g$ of phenylacetic acid $(C_6H_5CH_2COOH)$ in $4.4\, g$ of benzene $(h_f = 5.12\,kg\,mol^{-1})$ freezes at $4.47^{\circ} C$. From this observation, one can conclude that

Protista differs from monera in having

Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point $A$ is $\rho_{0}$. Density at point $B$ will be

Primary, secondary and tertiary amines can be distinguished by

Polar bodies are formed during

Permanent hardness of water can be removed by adding

Percentage of free space in cubic close packed structure and in body centred packed structure are respectively

Passing $H _{2} S$ gas through nitric acid produces

Parathormone influences calcium absorption in the small intestine by regulating the metabolism of

Oxidation number of $N$ is $ HN{{O}_{3}} $ is

Oxalic acid on heating with conc. $ H_2SO_4$ gives

Outermost layer in the wall of alimentary canal is

Oparin-Haldanes view on the origin of life was first experimentally recognised by

One of the free-living, anaerobic nitrogen-fixer is

One can easily weighs the earth by calculating the mass of earth using the formula (in usual notation)