List of practice Questions

The entropy change involved in the isothermal reversible expansion of $2$ moles of an ideal gas from a volume of $10\, dm ^{3}$ at $27^{\circ} C$ is to a volume of $100\, dm ^{3}$
The diameter of the plate of a parallel plate condenser is $6\,cm$. If its capacity is equal to that of a sphere of diameter $200\, cm$, the separation between the plates of the condenser is
The $C_{4}$ plants differ from $C_{3}$ plants with reference to the
The boiling point of $p$-nitrophenol is higher than that of $o$-nitrophenol because
Strongest conjugate base is
Spiral or ribbon shaped chloroplast is present in
Select the correct statement:
Ringworm, a common infectious disease in man causing dry scaly lesions on the skin and scalp, is caused by
Rhombic sulphur dissolves best in
Refer the given figure of digestive system of earthworm and identify the part labelled X.
Purification of colloids is done by
Plasmodium enters the human body as
Placenta and pericarp are both edible portions in
Oxidative decarboxylation of pyruvic acid results in the formation of I. $\quad$Acetyl CoA II. $\quad$C0$^2$ III. $\quad$ATP IV. $\quad$NADH + H$_+$
One hormone hastens the maturity period in juvenile conifers, a second hormone controls xylem differentiation while the third increases the tolerance of plants to various stresses and they are respectively
Non-albuminous seed is produced in
Nitrogen shows maximum covalency of $4$ whereas other heavier elements of the group show higher covalency because,
Nicol prism is made up of
Monomers of nylon 2-nylon 6 ar
Monovalent sodium and potassium ions, divalent magnesium and calcium ions are found in
Molality of $2.5\, g$ of ethanoic acid $ (CH_{3}COOH) $ in $75\, g$ of benzene is
Match the sub-stage of prophase I of meiosis in Column 1 and the events in Column II and choose the right option.
Match column I with column II and select the correct option from the given codes.
Maltose is made of the units
Male gametophyte with least number of cells is present in