List of top Chemistry Questions

Allyl cyanide molecule contains
The dispersed phase and dispersion medium in soap lather are respectively
Carbohydrates are stored in human body as the polysaccharide
The monomers used for their preparation of nylon-$2$-nylon-$6$ is/are
An inorganic salt $(A)$ is decomposed on heating to give two products $(B)$ and $(C)$. Compound $(C)$ is a liquid at room temperature and is neutral to litmus while the compound $(B)$ is a colourless neutral gas. Compounds $(A)$, $(B)$ and $(C)$ are
Germanium of very high purity is obtained by
The amount of solute (molar mass $ 60\text{ }g\text{ }mo{{l}^{-1}} $ ) that must be added to $180\, g$ of water so that the vapour pressure of water is lowered by $10\%$, is
Among the following elements, which one exhibits both positive and negative oxidation states?
Among the transition metals of 3d series, the one that has the highest negative $M^{2+} /M$ standard electrode potential is
The molality of the $3\,M$ solution of methanol if the density of the solution is $0.9\, g\, cm^{-3}$ is
In which one of the following, d-d transition involves absorption in the ultraviolet region
$0.02$ mole of $[Co(NH_{3})_{5}Br]Cl_{2}$ and $0.02$ mole of $[Co(NH_{3})_{5}Cl]SO_{4}$ are present in $200\, cc$ of a solution $X$. The number of moles of the precipitates $Y$ and $Z$ that are formed when the solution $X$ is treated with excess silver nitrate and excess barium chloride are respectively
Sulfonation of benzene with excess sulfuric acid provides
20.0 kg of H\(_2\)(g) and 30 kg of H\(_2\)(g) are reacted to produce NH3(g). The amount of NH3(g). formed is
Read the statements regarding muscle proteins. i. Actin is a thin filament and is made up of two $F$-actins, ii. The complex protein, tropomyosin is distributed at regular intervals on the troponin iii. Myosin is a thick filament which is also a polymerized protein iv. The globular head of meromyosin consists of light meromyosin $(LMM)$
Portland cement does not contain
Which one of the following is not a sulphide ore?
The element with atomic number 117 has not been discovered yet. In which family would you place this element if discovered?
Disaccharide in milk is
For two isomorphous crystals $A$ and $B$, the ratio of density of $A$ to that of $B$ is $1.6$ while the ratio of the edge length of $B$ to that of $A$ is $2$. If the molar mass of crystal $B$ is $200\,g\,mol^{-1}$, then that of crystal $A$ is
The charge on the central metal ion in the complex $[Ni(CO)_4]$ is
Homolytic fission of a covalent bond leads to the formation of
A sample of phosphorus trichloride $(PCl_3)$ contains 1.4 moles of the substance. How many atoms are there in the sample ?
Gabriel synthesis is used for the synthesis of:
The dihalogen derivative $'X'$ of a hydrocarbon with three carbon atoms reacts with alcoholic $ KOH $ and produces another hydrocarbon which forms a red precipitate with ammoniacal $ C{{u}_{2}}C{{l}_{2}} $ . $ 'X' $ gives an aldehyde on reaction with aqueous $ KOH $ . The compound $'X'$ is