List of top Chemistry Questions

Which is not fat soluble vitamin?
The solution of $AlCl_3$ in water is acidic due to
Units of rate constant for first and zero order reactions in terms of molarity $M$ unit are respectively
Which of the following molecules posesses trigonal bipvramidal geometry.
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?
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?
Non-oxide ceramics can be
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
An organic compound, $ {{C}_{3}}{{H}_{6}}O $ does not give a precipitate with $2, 4$-dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be
Acetophenone when reacted with a base , $C_2 H_5 ONa,$ yields a stable compound which has the structure . The state of hybridisation of S in $SO_2$ is similar to that of
The chemical formula of 'tear gas" is
Non-oxide ceramics can be