List of top Chemistry Questions

Which among the following group-15 elements does NOT react with concentrated sulfuric acid?
Identify the product obtained when benzamide is treated with bromine and aqueous sodium hydroxide.
Which among the following lanthanoids shows only +3 oxidation state?
An ideal gas expands isothermally and reversibly from 10m\(^3\) to 20m\(^3\) at 300K, performing 5×10\(^3\) J of work on surroundings, calculate number of moles of gas used?
Which among the following polymers is obtained from styrene and 1-3-Butadiene?
Which of the following molecule contains 50% p\(_\pi\) character of hybrid orbital in C atom?
Which among the following ore is concentrated by froth flotation process?
Mixture of iodine and Sodium Sulphate is separated by .........
A compound has fcc structure. If density of unit cell is 3.4 g cm$^{-3$, what is the edge length of unit cell? (Molar mass = 98-99)}
Identify the symbol used for water according to Dalton's atomic theory.
Which among the following amino acids has the lowest molar mass?
How many electrons are involved in the reaction when 0.40 F of electricity is passed through an electrolytic solution?
A sample of gas absorbs 4000 kJ of heat and surrounding does 2000 J of work on sample. What is the value of \(\Delta U\)?
Which of the following alcohols needs acidic KMnO\(_4\) to convert it into aldehyde or ketone?
Which among the following is an example of allylic alcohol?
Which among the following methods is NOT suitable for the preparation of alkyl chlorides?
An ideal gas expands from 1 × 10\(^-3\) m\(^3\) to 1 × 10\(^-2\) m\(^3\) at 300 K against a constant external pressure of 1 × 10\(^5\) N/m\(^2\). Work done is
Identify the neohhexyl chloride from the following.
Which of the following oxide of nitrogen is coloured?
What is the coordination number of cation in ionic compound if the type of hole occupied by cation is cubic?
According to Andrews isothermals, the minimum temperature at which carbon dioxide gas obeys Boyle’s law is
Which of the following does NOT give carbylamine test?
The coordination number of the sphere in cubic close packed (ccp) structure is
An organic compound was found to contain 40.0% C and 6.66% H. Find its molecular formula (molar mass = 180).
Which of the following is dihydric phenol?