List of practice Questions

A good example of organic fertilizer which improves phosphorus uptake is
The theory of random genetic drift was proposed by
Tricarpellary syncarpous superior ovary is seen in
Vestigial organs present in an adult individual are example of basis of evidence of evolution
If you suspect deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?
The net filtration pressure in the glomerulus of the kidney is
The one way of unidirectional transmission of nerve cells is maintained by
An inductive coil has a resistance of $100 \, \Omega $ When an AC signal of frequency $1000\, Hz$ is applied to the coil, the voltage leads the current by $ 45^{\circ} $ . The inductance of the coil is
Carbon shows the following oxidation state in its hydrides
The geometrical shape of $ sp^{3}d$ hybridisation is
Which one of the following examples exhibit transient existence?
According to Huckel's rule an aromatic compound must possess
Among the following metal carbonyls, the $C-O$ bond order is lowest in
A solution of a metal ion when treated with $KI$ gives a red precipitate which dissolves in excess $KI$ to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is
The percentage of $p$-character in the orbitals forming $P-P$ bonds in $P_4$ is
Among the following, the least stable resonance structure is
A solid sphere of mass $2\, kg$ rolls up a $ 30^{\circ} $ incline with an initial speed of $10 \,m/s$. The maximum height reached by the sphere is $(g = 10\,m/s^2)$
A particle moves in the X-Y plane under the influence of a force such that its linear momentum is $p(t) =A[\widehat{i}cos\, (kt) -\widehat{j}sin\, (kt)]$ where, A and k are constants. The angle between the force and the momentum is
A ray of light travelling in water is incident on its surface open to air. The angle of incidence is $\theta$, which is less than the critical angle. Then there will be
A magnetic field $B=B_0 \widehat{j}$ exists in the region a < x < 2 a and $B=-B_0 \widehat{j}$ in the region 2a < x < 3a, where $B_0$ is a positive constant. A positive point charge moving with a velocity$v-v_0 \widehat{i} $ where $v_0$ is a positive constant, enters the magnetic field at x = a. The trajectory of the charge in this region can be like
The largest wavelength in the ultraviolet region of the hydrogen spectrum is $122 \,nm$. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest integer) is
Vector which is perpendicular to $a \, \cos \theta \hat i + b \, \sin \, \theta \hat j$ is
The angle between the lines with direction ratios $ (4,-3,5) $ and $ (3,4,5) $ is
Which of the following is the electron deficient molecule?
Which one of the following represents an ovule, where the embryo sac becomes horse- shoe shaped and the funiculus and micropyle are close to each other?