List of top Chemistry Questions

The binding energy of an electron in the ground state of He-atom is $E_0= 24.7e \,V$The energy required to remove both the electrons from the atom is
The basic character of amines is because
The basic component of the smog is
The average molecular speed is greatest in which of the following gas samples ?
The available space filled in hexagonal close packing pattern in one layer is
The average composition of portland cement is
The atomicity of various noble gases is
The atomic number of an element $M$ is $26$. How many electrons are present in the M-shell of the element in its $M^{3+}$ state
The atomic radius increases as we move down a group because
The approximate voltage of dry cell is
The approximate percentage of silica in cement is:
The approximate mass of tritium oxide molecule is
The antiseptic action of Dettol is due to
The anion $[Co(C_2O_4)_3]^{3-}$ involves hybridization
The anhydride of ortho phosphoric acid is
The angular momentum of electron in $n_{th}$ orbit is given by
The angular momentum of an electron is zero. In which orbital may it be present
The amount of electricity that can deposit 108 g of silver from silver nitrate solution is
The amount of work, which can be obtained by supplying 200 cal of heat, is
The alkali metal used in photoelectric cell is
The alkali metals dissolve in ammonia to give a deep blue solution which is conducting in nature. $M+\left(x+y\right) NH_{3} \to\left[M\left(NH_{3}\right)_{x}\right]^{2+}+2\left[e\left(NH_{3}\right)_{y}\right]^{-}$ Which of the following is not true about the solutions of alkali metals in liquid ammonia ?
The alkali metals have an outer electronic configuration of
The addition of HCl will not suppress the ionisation of
The addition of HBr to an alkene in the presence of peroxide is an example of :
The acidic character of oxides of group 15, $N_2O_3, P_2O_3, As_2O_3, Sb_2O_3$ (in this order)