List of top Chemistry Questions

Mendeleeff's periodic table is based on

According to Linus Pauling, the electronegativity values are based on

Relative lowering of vapour pressure of a dilute solution of glucose dissolved in 1 kg of water is 0.002. The molality of the solution is

Addition of excess of AgNO3 to an aqueous solution of 1 mole of PdCl2. 4NH3 gives 2 moles of AgCl. The conductivity of this solution corresponds to

\({A->[K_2Cr_2O_7][dil.H_2SO_4]B->[CH_3MgI][H_2O]CH3}\) the reactant A is

$3.6$ gram of oxygen is adsorbed on $1.2\, g$ of metal powder. What volume of oxygen adsorbed per gram of the adsorbent at $1\,atm$ and $273 \,K$ ?

$50\, mL$ of $0.02\, M \,NaOH$ solution is mixed $50\, mL$ of $0.06 \,M$ acetic acid solution, the $pH$ of resulting solution is $\left( p K_{a}\right.$ of acetic acid is $4.76, \log 5=0.70$ )

The number of species of the following that can act both as Bronsted acids and bases is $HCl , ClO _{4}^{-},{ }^{-} OH , H ^{+}, H _{2} O , HSO _{4}^{-}, SO _{4}^{2-}$, $H _{2} SO _{4}, Cl ^{-}$

Which of the following carbohydrates are branched polymer of glucose

What is the value of γ for a monoatomic gas (ideal gas):

Mole fraction of the solute in a $1.00$ molal aqueous solution is

Which one is classified as a condensation polymer?

In the reaction $2 PCl _{5} \rightleftharpoons PCl _{4}^{+}+ PCl _{6}^{-}$, the change in hybridisation is from

The electronic configuration of $Eu$ (Atomic $No. 63$), $Gd$ (Atomic $No. 64$) and $Tb$ (Atomic $No. 65$) are :

Glycine in alkaline solution exists as______and migrates to__________.

$aK _{2} Cr _{2} O _{7}+ bKCl + cH _{2} SO _{4} \longrightarrow xCrO _{2} Cl _{2}+ yKHSO _{4}+ zH _{2} O$ The above equation balances when

General formula of solid in zinc blende structure is:

Which of the following has zero net dipole moment?

Which of the following element has the highest ionisation enthalpy?

In the clathrates of xenon with water, the nature of bonding between xenon and water molecule is

In the purification of impure nickel by Mond's process, metal is purified by:

The angular speed of the electron in the $n^{th}$ orbit of Bohr hydrogen atom is

Bragg's law is given by the which of the following equation?

The electrode potentials for ${Cu^{2+}(aq)+e^-->Cu^+(aq)}$ and ${Cu^{+}(aq)+e^-->Cu(s)}$ are $+ 0.15\, V$ and $+ 0.50 \,V$, respectively. The value of $E^?_{Cu^{2+}/Cu}$ will be :