List of top Chemistry Questions

Which of the following is not a property of liquid state?
What amount of $Cl_{2}$ gas liberated at anode, if $1$ ampere current is passed for $30$ minute from $NaCl$ solution?
The geometry of $ Ni(CO)_{4}$ and $ Ni(PPh_{3})_{2}Cl_{2}$ are:
Certain crystals produce electric signals on application of pressure. This phenomenon is called:
The mass of glucose that should be dissolved in $50\, g$ of water in order to produce the same lowering of vapour pressure as is produced by dissolving $1\, g$ of urea in the same quantity of water is
The decomposition of a certain mass of $CaCO_3$ gave $11.2\, dm^3$ of $CO_2$ gas at $STP$. The mass of $KOH$ required to completely neutralise the gas is
The brown ring test for nitrates depends on
Glucose contains in addition to aldehyde group
An example for autocatalysis is
Liquor ammonia bottles are opened only after cooling. This is because
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?
The aqueous solution containing which one of the following ions will be colourless?(Atomic no: Sc=21, Fe=26, Ti=22, Mn=25)
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?

Raffinose is a :

The oxidation number of oxygen in hydrogen peroxide is:
$KF$ combines with $HF$ to form $KHF_2$. The compound contains the species:
The molecular electronic configuration of $Be_2$ is:
Which of the following silver salts is insoluble in water ?
For the reaction (at $1240 \,K$ and $1$ atm.) $ CaCO_3 (s) \rightarrow CaO(s) + CO_2 (g) $ $\Delta H = 176 \, kJ/ mol; \Delta E$ will be :
Which of the following is deliquescent ?
Dacron is polymer of :
Among the following sets of quantum numbers. Which one is incorrect for $4d$ electron ?
Charles' law is represented mathematically as :
Cyanohydrin of which of the following forms lactic acid:
Incorrect statement for pyrophosphorus acid $H_4P_2O_5$ is :