List of top Chemistry Questions

The ion that is isoelectronic with CO is
Among the following, the compound that can be most readily sulphonated is
The precipitate of C$aF_2, \, ( K_{sp} = 1.7 \times 10^{ - 10 } )$ is obtained, when equal volumes of which of the following are mixed?
Helium atom is two times heavier than a hydrogen molecule. At $298\, K$ the average kinetic energy of a helium atom is
The compound with highest boiling point is
In the metallurgy of iron, limestone is added to the blast furnace. The calcium ions end up as
The ion that cannot be precipitated by both HCl and $H_2 S$ is
Iron is rendered passive by treatment with concentrated
Among the following, the linear molecule is
If 0.5 mol of $BaCl_2$ is mixed with 0.2 mol of $Na_3PO_4$ the maximum number of moles of $Ba_3(PO_4 )_2$ that can be formed is
The temperature ar which a real gas obeys the ideal gas laws over a wide range of pressure is
An azeotropic solution of two liquids has boiling point lower than either of them when it
The rate constant of a reaction depends on

An acidic buffer solution can be prepared by mixing solution of

Pure ammonia is placed in a vessel at a temperature where its dissociation constant ($\alpha$ ) is appreciable. At equilibrium, $ N_2 + 3H_2 \rightleftharpoons 2NH_3$
The equilibrium $ SO_2CI_2 \, ( g) \rightleftharpoons SO_2 \, ( g) + CI_2 \, ( g) $ is attained at $ 25^\circ$C in a closed container and an inert gas, helium is introduced. Which of the following statements are correct ?
At $90^\circ C,$ pure water has $[H_3 O^+] $ as $ 10^{ - 6 } \, mol \, L^{ - 1}$. What is the value of $ K_w \, at \, 90^\circ $ C ?
For the reaction $2HI_{(g)} \leftrightharpoons H_{2(g)} + I_ {2(g)} -Q\, KJ$ , the equilibrium constant depends upon
Of the given anions, the strongest base is
The $pH$ of $10^{-8}\, M \,HCl $ solution is
The compound which is not isomeric with diethyl ether is
HBr and HI reduce sulphuric acid, HCl can reduce $KMnO_4$ and HF can reduce
How many unpaired electrons are present in $Ni^2$ ?
A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of
The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is