List of practice Questions

In the blast furnace (extraction of iron) the highest temperature is in
In the Bohr model of the hydrogen atom, the lowest orbit corresponds to
In tea plantations and hedge making, gardeners trim the plants regularly so that they remain bushy. Scientific explanation behind this is
In test for primary amines, the amine is treated with $ {CHCl_3}$ and KOH and a bad smelling compound is formed. If the primary amine used is ethylamine, identify the bad smelling compound formed?
In the above graph, point B indicates
In the above question the iso-profit line is
In taxonomic hierarchy, cats are placed under the Genus
In sporozoa, locomotory organs are
In stationary waves, nodes are the points where there is
In submerged hydrophytes, the absorption of water takes place through
In some_____ , the leaf base may become swollen and is called as_____ .
In spermatogenesis, the phase of maturation involves
In spiral phyllotaxy, the number of leaves at each node is
In spite of being an odd-electron molecule $ClO_2$ does not dimerize because
In $SiO_{4}^{4-}$ , the tetrahedral molecule, two oxygen atoms are shared in
In sky-wave propagation, skip-distance depends on :
In solid state $PCl_5$ is a _______.
In Solvay ammonia process, sodium bicarbonate is precipitated due to
In SI, the unit of latent heat is
In SI, unit of quantity of heat is
In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine ?
In single slit diffraction pattern
In $S_{N^1}$ reaction, . the recimisation takes place due to
In pyrophosphoric acid, $H_4P_2O_7$, number of $?$- and $d?-p?$ bonds respectively are
In recombinant $DNA$ technology, the term vector refers to