List of top Chemistry Questions

Bleaching Powder is mixed in drinking water. Why?
A Solution reacts with egg-shell to give CO$_2$ gas, the Solution contains :
A Solution turns blue Litmus red, its pH is likely to be :
Which metals are kept in kerosene?
In which conditions rusting of iron takes place in presence of:
Rancidity is due to oxidation of:
The reaction $ \text{CuSO_4 + \text{Zn} \rightarrow \text{ZnSO}_4 + \text{Cu} $ is an example of a:}
FeSO$_4$ decomposes on heating into :
Propane, with the molecular formula C$_3$H$_8$ has :
Two successive compounds, having same functional group. They have a difference of :
Formula of Carboxylic group is :
Triads rule was given by:
Which element has '2, 8, 1' Electronic configuration?
Mendeleev's Modren periodic law is based on :
"Tyndall effect" will be shown by which of the following ?
The formula of Calcium Carbonate is :
Choose the correct relationship: molar mass - common name - chemical formula from the following options.
What is the mass of $ 0.5 $ mole of oxygen atoms?
The Avogadro constant $6.022140857 \times 10^{23$ is defined as the number of atoms present in exactly 12 g of ..........}
The Law of Conservation of Mass-During a chemical reaction ____ .
Which of the following species is not stable ?
The manganate and permanganate ions are tetrahedral, due to:
Which will make basic buffer?
For the cell reaction
\(2Fe^{3+}+2I^{-}_{(aq)}\rightarrow2Fe^{2+}+I_2{(aq)}\)
\(E^{\ominus}_{cell}=0.24\ V \ at \ 298 k.\)The standard Gibbs energy \((\Delta_rG^{\ominus})\) of the cell reaction is:
[Given that Faraday constant \( F=96500 \ C\ mol^{-1}]\)  
The biodegradable polymer is: