List of practice Questions

Syrinx, the voice box of birds, occurs at

Systematic name of $H_2O$ is

Sweet Potato is a modification of

Synapsis is of ______ kind(s) :

Synaptonemal complex is found associated with

Syngamy is the process in which

Surface mass density of a disc is given by $\sigma = kr^2$ (where r is distance from centre) find moment of inertia about axis passing through the centre and perpendicular to plane -

Susceptibility is large and positive for

Suppose $z_1, z_2, z_3$ are the vertices of an equilateral triangle inscribed in the circle $| z| = 2$. If $z_1$ = $\sqrt {3i}$ and $z_1,z_2,z_3$ are in . the clockwise sense, then

Super conductors are derived from compounds of

Super halogen is

Suppose a population A has 100 observations 101, 102, ............., 200 and another population B has 100 obsevrations 151, 152, ................ 250. If $V_A$ and $V_B$ represent the variances of the two populations, respectively then $\frac{V_A}{V_B}$ is

Suppose ideal gas equation follows $VP^3 =$ constant. Initial temperature and volume of gas are T and V respectively. If gas expands to 27V, then its temperature will become

Sum of n terms of the series $ 1 + 11 + 111 + ...$ is

Sum to $10$ terms of the series $1+2\left(1.1\right)+3\left(1.1\right)^{2}+4\left(1.1\right)^{3}+..., $ is

Sulphuryl chloride, $SO_2Cl_2$, reacts with $H_2O$ to give mixture of $H_2SO_4$ and HCl. Aqueous solution of 1 mol $SO_2Cl_2$ will be neutralised by

Sulphur molecule is

Sulphur monochloride reacts with ethene to form

Sulphur trioxide is not directly dissolved in water to form sulphuric acid because

Sulphuric acid reacts with $PCl_5$ to give

Sugar cane reproduces by

Sulpha drugs are used for

Sulphide ion $(S^{2-})$ reacts with solid sulphur forming $S^{2-}_2$ and $S^{2-}_3$ with formation constants 12 and 132 respectively. Formation constant of $S^{2-}_3$ from sulphur and $S^{2-}_2$ is :

Sulphide ores are generally concentrated by

Study the given pedigree chart for sickle-cell anaemia and select the most appropriate option for the genotypes.