List of top Chemistry Questions

$ A\,\,0.5\,\,g/L $ solution of glucose is found to be isotonic with a $ 2.5\,\,g/L $ solution of an organic compound. What will be the molecular weight of that organic compound?
What is the wavelength (in $ m $ ) of a particle of mass $ 6.62\times {{10}^{-29}}g $ moving with a velocity of $ {{10}^{3}}\,\,m{{s}^{-1}} $ ?
What is the electrode potential (in $ V $ ) of the following electrode at $ {{25}^{o}}C $ ? $ N{{i}^{2+}}(0.1\,\,M)|Ni(s) $ (Standard reaction potential of $ N{{i}^{2+}}|Ni $ is $ -0.25\,\,V,\,\,\frac{2.303RT}{F}=0.06) $
Calculate the concentration of $NaOH$ solution in g/ml. which has the same normality as that of a solution of $HCl$ of concentration $0.04 \,g/ml$
Which is not fat soluble vitamin?
The solution of $AlCl_3$ in water is acidic due to
Which of the following molecules posesses trigonal bipvramidal geometry.
Units of rate constant for first and zero order reactions in terms of molarity $M$ unit are respectively
The atomic number of an element $M$ is $26$. How many electrons are present in the $M$-shell of the element in its state
Tropylium cation is aromatic in nature.
The only property that determines its aromatic behaviour is its planar structure.
Colloidal solutions are stable but colloidal particles do not settle down. Brownian movement counters the force of gravity actively on colloidal particles.
Bleaching powder reacts with dilute acids to evolve chlorine. The chlorine liberated by the action of dilute acids on bleaching powder is called available chlorine.
Which of the following chemical reactions depicts the oxidizing behaviour of $H_{2} SO_{4}$ ?
How many moles of magnesium phosphate, $Mg_{3} \left(po_{4}\right)_{2}$ will contain 0.25 mole of oxygen atoms ?
HBr reacts with $CH_{2} =CH-OCH_{3}$ under anhydrous conditions at room temperature to give:
The organic chloro compound, which shows complete sterochemical inversion during a $ {S_{N^2}}$ reaction, is
$0.01 M$ solution of $KCl$ and $BaCl _{2}$ are prepared in water. The freezing points of $KCl$ is found to be $-2{ }^{\circ} C$. What is the freezing point of $BaCl _{2}$ to be completely ionised?
Non-oxide ceramics can be
A unit cell of sodium chloride has four formula units. The edge length of the unit cell is $0.0564\, nm$. What is the density of sodium chloride?
Which one of the following is most reactive towards electrophilic attack ?
When $o$- or $ p- $ phenolsulphonic acid is treated with bromine water, the product formed is
In Williamson's synthesis, ethoxyethane is prepared by
In which of the following compounds $ -OH $ group is least reactive?
If $ N{{a}^{+}} $ ion is larger than $ M{{g}^{2+}} $ ion and $ {{S}^{2-}} $ ion is larger than $Cl^-$ ion, which of the following will be stable soluble in water?
Anisole can be prepared by the action of methyl iodide on sodimn phenate. The reaction is called