List of practice Questions

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
How many human teeth appear twice during the life span of an individual ?
The following diagram indicates the reflex arc. Identify the parts labelled as A,B,C,D,E,F and G. Choose the correct option
The rate of reaction between two reactants A and B decreases by a factor of 4,if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is:
The decreasing order of nucleophilicity among the nucleophiles : (A)$CH_{3}\underset{\underset{O}{||}}{C}-O^-$ (B)$CH_3O^-$ (C) $CN^-$
If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously, what will be the ratio of ova and sperms produced ?
The standard electrode potential is measured by
A student unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on his hair. He will not succeed
A tangent Galvanometer has a reduction factor of $1\,A$ and it is placed with the plane of its coil perpendicular to the magnetic meridian. The deflection produced when a current of $1\,A$ is passed through it is
From the figure describing photoelectric effect we may infer correctly that ........
$ H_2S $ gas when passed through a solution of cations containing $HCl$ precipitates the cations of second group in qualitative analysis but not those belonging to the fourth group. It is because