List of practice Questions

Which one of the following forms micelles in aqueous solution above certain concentration?
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of $ 0.5\,m/s $ . What is the height of the plane of circle from vertex of the funnel?
$ 2\,g $ of water condenses when passed through $ 40\,g $ of water initially at $ 25^{\circ}C $ . The- condensation of steam raises the temperature of water to $ 54.3^{\circ}C $ . What is the latent heat of steam?
The spectral energy distribution of a star is maximum at twice temperature as that of sun. The total energy radiated by star is
The most biodiversity rich zone in India
Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution ?
The matrix [5103−2−46−1−2b]is a singular matrix, if b equals
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
For the reaction $N_{2(s)}+O_{2(s)} \rightleftharpoons 2 N O_{(g)}$, the value of $K_{c}$ at $800^{\circ} C$ is $0.1 .$ When the equilibrium concentrations of both the reactants is $0.5 \,mol$, what is the value of $K_{P}$ at the same temperature?
A micro-organism, when viewed under a compound microscope with an objective lens of 40 X and an eye piece of 10 X magnification measured 4000 � in length. The same microorganism when observed under a dissection microscope with a lens of 10 X magnification, would measure........
A nucleosome is a portion of the chromonema containing_______
If $M$ is the mass of the earth and $R$ its radius, the ratio of the gravitational acceleration and the gravitational constant is :
A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly
A precipitate of $AgCl$ is formed when equal volumes of the following are mixed. $[K_S\, for\, AgCl = 10^{-10}]$
From the adjacent figure, the correct observation is
Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? (At. no. of Zn = 30, Cr = 24, Co = 27, Ni = 28)
The aqueous solution containing which one of the following ions will be colourless?(Atomic no: Sc=21, Fe=26, Ti=22, Mn=25)
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?
If $\omega$ is a complex cube-root of unity then, $\begin{vmatrix} {1}&{\omega} &{\omega^2}\\ {\omega}&{\omega^2}& {1} \\ {\omega^2}&{1}&{\omega}\\ \end{vmatrix} $ is equal to
How many times a red blood corpuscle will have to pass through the heart in its journey from hepatic artery to the aorta ?
Which one of the following types of silk is being produced extensively in South India?
Which one of the following is not a characteristic feature of bryophytes ?
Osmoregulation in Paramecium is a function of
Which of the following is the electron deficient molecule?
The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil is