List of practice Questions

The most important mineral for blood coagulation is
The monomer units of starch are
The molal elevation or ebullioscopic constant for water is
The mass and diameter of a planet are twice those of earth. The period of oscillation of pendulum on this planet will be (if it is a seconds pendulum on earth)
The mammalian blastula is known as
The latent heat of vaporisation of a substance is always
The ionisation potential of mercury is $10.39\, V$. How far ah electron must travel in an electric field of $ 1.5\times {{10}^{6}}V/m $ to gain sufficient energy to ionise mercury?
The head of Cockroach lacks
The genetically-modified (GM) brinjal in India has been developed for
The formula of chloral is
The following arrangement consists of five identical metal plates marked $1$, $2$, $3$, $4$ and $5$ parallel to each other. Area of each plates is $A$ and separation between the successive plates is $d$. The capacitance between $P$ and $Q$ is
The first stable product of Calvin cycle is
The existence of two different coloured complexes with the composition of $[Co(NH_3 )_4Cl_2 ]^+$ is due to
The exchange of genetic material between homologous chromosomes during meiosis is beneficial to the organism because it results in
The equation of a particle executing SHM is $\frac{2d^2x}{dt^2}+32x=0$Then the time period of the body is
The energy of a hydrogen atom in the ground state is $-13.6\, eV$. The energy of a $He^+$ ion in the first excited state will be
The electronic configuration of chromium (Z = 24) is
The night-blindness is developed due to shortage of which vitamin?
The electronic configuration of neon is
The correct sequence of stages in the evolution of modern man (Homo sapiens), is
The core of any transformer is laminated so as to
The cornea is a very important component of the human eye. The main function of the cornea is to
The conductivity of $0.20 \,M\, K C l$ solution at $298\, K$ is $0.0248\, S\, cm ^{-1}$. What will be its molar conductivity?
The concentration of $ A{{g}^{+}} $ ion in a given saturated solution of $ AgCl $ at $ 25{}^\circ C $ is $ 1.06\times {{10}^{-5}}g- $ ion per litre. Thus, the solubility product of $ AgCl $ is
The concentration of hydronium ions in a cup of black coffee is $1.3 \times 10^{-5} M$. What will be the $pH$ of the coffee?