List of practice Questions

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?
Which of the following does not reduce Fehling?s solution?
Uricotelism is found in
The most stable compound is
Protein synthesis in an animal cell occurs
Plants with a short body are called
In Ornithine cycle, which of the following wastes are removed from the blood?
In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype
Hamburger shift is also known as
Fission of nuclei is possible because the binding energy per nucleon in them
Systema Naturae was written by
An electron moves in a circular orbit with a uniform speed $ v $ . It produces a magnetic field $B$ at the centre of the circle. The radius of the circle is proportional to
The monomer of the polymer