List of top Chemistry Questions

1 mole of $H_2$ and 2 moles of $I_2$ are taken initially in a 2 litre vessel. The number of moles of $H_2$ at equilibrium is 0.2. Then the number of moles of $I_2$ and HI at equilibrium is

The hypothetical complex chloro diaquatriammine cobalt (III) chloride can be represented as 

In electrolysis of NaCl when Pt electrode is taken then $H_2$ is liberated at cathode while with Hg cathode it forms sodium amalgam :-
Which of the following statements is true:-
An atom has electronic configuration $ 1s^2, 2s^2 \, 2p^6, \, 3s^2 \, 3p^6 \, 3d^3, \, 4s^2$, you will place it in which group : -
In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true : -
Heat of combustion $ \Delta H^{\circ}$ for $ C ( s ), H _{2}( g )$ and $CH _{4}( g ) $ are -94,-68 and $-213 \,Kcal / mol $ then $\Delta H ^{\circ}$ for $C ( s )+2 H _{2}( g ) \to CH _{4}( g )$ is:-

Which of the following shows maximum number of oxidation states 

Enzymes are made up of :-

CH2–C–CH3O and CH2–C–CH3O are

IUPAC name of the following CH2 = CH – CH2 – CH2 – C ≡ CH is 

$ n- $ propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent :-
Position of non polar & polar part in miscell
Which of the following is not a reducing agent?
$CuSO_4 $ when reacts with KCN forms CuCN which is insoluble in water. It is soluble in excess of KCN due to the formation of the complex :-

92U235, nucleus absorb a neutron and disintegrate in 54Xe139, 38Sr94 and x So, What will be the product x 

Cellulose is polymer of 

Reactivity order of halides for dehydrohalogenation is :-
In the silver plating of copper, $K[AG(CN)_2]$ is used instead of $AgNO_3. $ The reason is :-
The atomic numbers of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of the electron :
Zn gives $H_2$ gas with $H_2SO_4$ and HCI but not with $HNO_3$ because :-
In borex bead test which compound is formed

Which of the following order is wrong :

3A → 2B,rate of reaction +d[B]/dt is equals to 

van der Waals' real gas, act as an ideal gas, at which condition :-