List of practice Questions

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)

Nucleosome is

Non-zero dipole moment is shown by

Nitrogenous base that found in $RNA$ but absent in $DNA$ is

Name the type of tissue that forms gland

Mushroom gland is a part of

Moment of inertia of a ring of mass $M$ and radius $R$ about a tangent to the circle of the ring is

Mitochondria are semiautonomous as they possess

Middle piece of a mammalian sperm contains

Microfilaments in eukaryotic cells are made up of

Methane can be converted to ethane by the reaction